the Defendant did not deny the Invoices issued by the Plaintiff. The Defendant's failure to deny the Invoices means that the Defendant admits that the Defendant owed the Invoiced Sums to the Plaintiff..... [28] The oft-quoted dicta can be found in David Wong Hon Leong v. Noorazman bin Adnan [1995] 4 CLJ 155, at 159, where the Court of Appeal observed as follows: 13 "During argument, we registered our surprise at the learned Judge's reluctance to enter judgment for this sum of RM100,000. After all, the appellant had failed to respond to the letter of 17 December. If there had never been an agreement as alleged, it is reasonable to expect a prompt and vigorous denial. But, as we have pointed out, there was no response whatsoever from the appellant. In this context, we recall to mind the following passage in the judgment of Edgar Joseph Jr. J. in Tan Cheng Hock v. Chan Thean Soo & Anor [1986] 1 LNS 42; [1987] 2 MLJ 479 at 487: In Wiedemann v. Walpole [1891] 2 Q.B. 534, 537 an action for breach of promise of marriage, it was held, that the mere fact that the defendant did not answer letters written to him by the plaintiff in which she stated that he had promised to marry her, was no evidence corroborating the plaintiff's testimony in support of such promise. Lord Esher M.R., in his judgment, remarked, Here, we have only to see whether the mere fact of not answering the letters, with nothing else for us to consider is any evidence in corroboration of the promise.' (Emphasis added). 14 Earlier, in his judgment, he said, 'Now there are cases - business and mercantile cases in which the Courts have taken notice that, in the ordinary course of business, if one man of business states in a letter to another that he has agreed to do certain things, the person who receives that letter must answer it if he means to dispute the fact that he did so agree. (The emphasis is ours.)" (emphasis added) [29] There is also no merit in raising only during cross-examination of the Plaintiff witnesses that rates had not been agreed. If that was truly in dispute then the Defendant should have stopped the Plaintiff from proceeding and not when they have proceeded for 9 months to then raise this issue of rates. There was further no qualification that the payments made so far of RM3,628,921.16 was made preserving and reserving the Defendant’s right to dispute on the rates that they had not agreed. [30] I hold that it is too late in the day to raise this issue of rates when it was not so pleaded and when the circumstances of failure to raise a contemporaneous challenge to the issue of rates would be such that the Defendant is now estopped from so raising. At any rate the Defendant had not adduced evidence to show how the rates were unreasonable and what 15 would be a reasonable rate and that failure can only accentuate the emptiness of their present protest over rates. [31] I would draw inspiration from the astute analysis of Justice Lim Chong Fong in KC Leong Holdings Sdn Bhd v. Datin Moh Bee Ling [2015] 7 MLJ 10 below: “[30]...for the unit rate costing, I also prefer the testimony of the Plaintiff by reason that progressive payments were received from the Defendant as claimed by the Plaintiff without contemporaneous protest or challenge on the unit rate used by the Plaintiff. In fact, the Defendant did not even at that material time queried or demanded for the detail method and breakdown of the Plaintiff's claims. Moreover no contemporaneous protest was made by the Defendant on the written invoices of the Plaintiff dated 28 May 2007 and 18 June 2007 when the Project was nearing completion... ” (emphasis added) [32] The Defendant’s witnesses sought to explain that other than the certificate of payment issued for Invoice No.1 there were no other Certificates of Payment issued for the other Invoices 2-8 and hence they were not due for payments. Again this point was not pleaded. 16 [33] At any rate the Defendant had never raised any dispute on this ground of non-payment and continued making payment until 18.3.2016 (Invoice No.5 issued by the Plaintiff). The Summary for Invoices details and payment receipt details can be found at pages 166 CBOD 1. I cannot agree more with learned counsel for the Plaintiff that if the Defendant’s story is to be believed that the Defendant would pay the Plaintiff upon issuance of Progress Certificate that is debunked by the Defendant’s action of paying the Plaintiff until Invoice No.5. Bluntly put, it would be a case of blowing hot and cold. [34] What is very pertinent is that the Plaintiff had, at all material times, when submitting the Tax Invoices, also submitted the supporting documents (pages 14-17.222 CBOD 5, 18-172 CBOD 6, 1-202 CBOD 7) duly signed by the Project Management Team at the site. These documents namely the time sheets were signed, verified and approved by 3 of the Defendant’s representatives. An example of this can be seen at page 17.1 CBOD 5 for Tax Invoice dated 30/3/2016. (Q & A 42-47 pg 15-17 PW1-WS). [35] DW-2 also admitted under cross-examination that the Defendant’s representatives had verified and approved the work done by the Plaintiff. 17 [36] The Defendant cannot now depend on its own act of non-certification to refuse or deny payment. It is also no excuse to say that the certification had taken quite a while because of the many defects in the Plaintiff’s work. If the Defendant could identify the defects in the Plaintiff’s work, surely they would be in a position to certify so much of the Plaintiff’s work that was properly done. [37] In a context that is not dissimilar to the above, the High Court had occasion to remark as follows in ISO Technic Electrical Sdn Bhd v Calibre M&E Sdn Bhd [2017] 1 LNS 212: “[18] ...Defendant had never made any objections to any of Plaintiff's Progress Claims including the claims for the Additional Variation Works and instead RM3,169,176.44 had been paid to Plaintiff thus far and the outstanding balance of RM1,031,442.56 is now disputed by the Defendant. [23] ...There is no mechanism in the Letter of Award that the Progress Claim must be certified by the Defendant or an independent Consultant before the payment may be made. It is not then for the Defendant to say that they had not certified the Progress Claims and as such the amount claimed is open to dispute. Learned counsel for 18 the Plaintiff referred to Homewest Sdn Bhd v Vision Returns Sdn Bhd [2016] 5 CLJ 922; [2015] 11 MLJ 327 which is relevant to the issue of non-certification when certification is not a term of the contract. As summarized in the headnotes: [7] It was not disputed that the defendant and the architect had received progress claims No. 6-7 and the architect had not certified them. The architect's evidence in not approving the claims was that there were no consultant reports to support the claims. This was an internal arrangement between the architect, the defendant and the consultants. The plaintiff had complied with the requirements of cl 3.6 in submitting progress claims No. 6-7 to the defendant and architect. Non-certification by the architect was not fatal to the plaintiff's claim (see paras 23 & 26)." (emphasis added) [24] The Plaintiff had every expectation that as there was no objection, query, protest or dispute raised on the Progress Claims, it will be a case where the Progress Claims will eventually be paid by the Defendant. 19 [27] ...It must be noted here that each Progress Claim is supported by detailed documentation and it follows the format of a cover letter stating the amount due, a summary of Works done consisting of the Original Contract Sum and Variation Orders, the value of the Works done and the payments received and the total amount claimed. This is followed by about 70 pages of detailed Bill of Quantities detailing the description of the Works done, the quantities supplied, the rates, the amount, the percentage (%) completed, the value of current work done and a last column of the amount of "Total Work done." [32] ...It is only logical, reasonable and proper that when the Plaintiff had submitted a detailed BQ with every Progress Claim, it is incumbent on the Defendant to respond accordingly, and more so in a construction contract when it is not unusual for a dispute to easily arise over scope of work and percentage of works completed....” (emphasis added) [38] I am gratified to record that finally reality prevailed in that learned counsel for the Defendant, at clarification stage, was prepared to accept that in effect, as the Defendant had made payments for Invoices No. 1-5 and there remained only a sum of RM1,465,422.74 remaining unpaid for 20 Invoices 6-8 and I had allowed this sum claimed, being the balance outstanding for the work done by the Plaintiff up to date of termination. [39] With that admission made, learned counsel for the Plaintiff reciprocated with grace where the Additional Works claim was concerned. The Additional Works Invoices are at CBOD 1 pages 175 and 176 and pages 177 and 178 and the supporting documents are at CBOD 5 pages 14-17.222. [40] Learned counsel for the Plaintiff agreed that Items a) and c) at paragraph 98 of the Defendant’s submission be reduced by 20%. Assuming the work was done then the reduced sum for Item a) is RM57,663.60 and item c) RM117,364.40 [41] Learned counsel for the Defendant did not dispute, at the clarification stage the reduced sum for the Additional Works at paragraph 98 of his Submission at Items a) and c), being for consumables. Much goodwill was generated from being gracious to each other and learned counsel for the Defendant also finally did not dispute the claim for Additional Works represented in Items b) and d) of RM3,400.59 and RM7,532.24 respectively. 21 [42] Therefore the total of Additional Works from Items a) to d) of paragraph 98 of the Defendant’s Submission = RM185,960.83. [43] The 3 unpaid invoices at paragraph 104 of the Defendant’s Submission is RM1,465,422.74 and after adding Additional Works as revised of RM185,960.83, the overall amount is RM1,651,383.57 and so Judgment was entered for this sum. Whether the Defendant is entitled to claim the sum of RM1,102,558.50 for the cost of rectifying the defective works of the Plaintiff [44] It is not seriously disputed that the welding of P92 materials is a task that requires special skills. The P92 is a pipe of high content of chromium. [45] DW-2 gave evidence that the serious issues faced by the Defendant during the project execution was the lack of good quality and competent P92 welders from the Plaintiff to weld the P92 materials. The Plaintiff’s welders were mostly Indian welders who were not familiar with welding P92 materials. [46] For this specialized task the welders were required to pass a test conducted called the Welder Qualifying Test (“WQT”). From the WQT conducted from 22.10.2015 till 11.3.2016 at page 1089 CBOD 4, the 22 number of acceptable marked as “ACC” welders was low compared to the number of rejects denoted by “REJ”. [47] I am satisfied that the Defendant had sent the Plaintiff a List of Repair Works to be done by the Plaintiff and the identification of some 50 joints that needed repair with respect to the P92 materials as found at page 1201 CBOD 4. The Defendant had impressed upon the Plaintiff by their email dated 14.11.2015 at page 998 CBOD 3(2) of the need for urgent rectification works to be carried out. [48] The Defendant had also received complaints from its Client, Daelim in respect of the poor quality work by the Plaintiff. The Warning Notice dated 18.11.2015 from Daelim to Defendant can be found at page 1012, CBOD-3(2) which reads as follows: “Crack was found during reviewed film on joint F-19, drawing number 5LBB10-BR010-CAD-840(ID)-A”. [49] There was also the Warning Notice dated 25.12.2015 from Daelim to the Defendant at page 1015, CBOD-3(2) where the complaint is as follows: “Welding with wrong technique and sequences. 23 During night shift, welder number as below has found doing welding with wrong technique and sequences. This totally not acceptable, and will result to RT reject as happen currently repair rate is in critical situations. Furthermore, Heat & interpass temperature absolutely will be high (more than 350`C). Please refer photos”. [50] As a result of failure by the Plaintiff’s to provide qualified competent welders, the Defendant had no alternative but to engage welders from Korea and Thailand to rectify the welding rejected. The Plaintiff had also failed to submit repair plan to the Defendant though requested by the Defendant by their email of 31.3.2016 referring to a list of repairs from January 2016 at pages 1030 -1031 CBOD 3(2). [51] The question is whether the Defendant had proved the costs of rectification of RM1,102,588.50 claimed in its Counterclaim and captured in page 1199 - 1201 CBOD 4. DW-2 Encik Mukhles agreed under cross-examination that the source documents from which the summaries had been derived were not before the Court for verification and proof. [52] DW-2 further agreed under cross-examination that there were no supporting documents before the Court such as the Non-Destructive Testing (“NDT”) Reports, pre-heating time sheet or time charts, man-hour 24 details for repair work carried out and payment made. DW-2’s explanation was that these documents were with Daelim and TNB who was the owner of the project for verification. Surely the Defendant could have availed themselves of the provision of discovery of documents even if it were to be against a third party under Order 24 rule 7A Rules of Court 2012 but they have obviously failed to do so. [53] Alternatively or additionally the Defendants could have subpoenaed the relevant witnesses from Daelim and TNB. This Court would not allow that which is convenient to be a substitute for credible and cogent evidence. [54] To be more precise there are actually 3 components to the repair works claimed in pages 1199-1201 CBOD 4 namely that of manpower, consumables and equipment. [55] During cross-examination, DW-2 admitted that there were 62 workers listed but that there was no evidence as to the details of the workers with respect to the total hours for each worker and the details of payment of salary to these workers. 25 [56] With respect to the consumables, what was before the Court is a summary without the supporting documents and in particular there was no evidence of the use of P92 Welding Rod of 3.2 mm, 400kg. [57] With respect to equipment DW-2 reluctantly admitted that with respect to the 6 items of equipment and the number of days of usage and the rental rates of these equipment are not supported by documents and likewise the evidence of payment of the use of the equipment. [58] The problem arising from the poor presentation of the evidence is reminiscent of the problem discussed in ISO Technic Electrical Sdn Bhd v Calibre M&E Sdn Bhd [2017] 1 LNS 212 as follows: “[76] There is no documentary evidence to show what the labour is regarding, for if it is to complete the uncompleted works of the Plaintiff, then a proper list must be prepared showing exactly what were being done by the workers with regard to the expenditure of time to complete the uncompleted works and to rectify the defective works. [77] DW-2, Mr Tan Sun Nee was the Managing Director of STN Electricals Sdn Bhd that was engaged by the Defendant to finish the outstanding and defective works of the Plaintiff. He produced 26 invoices (without supporting documents), labour cards and letters found at pages 33-69 of CBOD3. Invoices by DW-2 do not make any references to any of the works stated in the Bill of Quantities that was in the Letter of Award. The invoices are without details of work the workers did that were supposed to be done by the Plaintiff. [78] There was another third party contractor, Tenaga WK Elektrik, represented by its principal DW-5, Mr Tham Wai Keon. Like DW-2, Mr Tham produced invoices (without supporting documents), labour cards and letters found at pages 7-22 of CBOD3. Again the Invoices by DW-5 do not make any references to any of the works stated in the Bill of Quantities that was in the Letter of Award given to the Plaintiff. Likewise the invoices are without details of work the workers did that were supposed to be done by the Plaintiff. I recall the analysis of such unsubstantiated invoices by Justice Lim Chong Fong JC in KC Leong Holdings's case (supra) at p 33 as follows: "[63] The defendant's cross-claim is massive comprising of essentially three heads of claim. Firstly there is special damages amounting to RM1,065,370.92 for remedying and rectifying multiple, gross and latent defects as submitted. In this 27 respect, the defendant has in substantiation produced the invoices of her rectification contractors such as Walk & Turn Builders, Shin Tat Construction Trading Sdn Bhd, DJ Deconway Furniture, Itex Power Enterprises, Kim Soon Electrical Engineering, etc that accumulated to that amount. There is no serious dispute that the defendant has paid against these invoices [64] On scrutiny of the invoices, I find that the items therein comprise of purported remedial work beyond those dealt under the third issue herein. In other words, there is a lot of other unexplained work. The defendant has merely collated all her payments made to the rectification contractors and held them entirely to the account of the plaintiff. This is plainly unsatisfactory and does not meet the requirement of proof of damages as held by the court of appeal in Sony Electronics