Section 17

in respect of the supply of gas; and

in respect of any necessary work to be done for the supply of gas, and if the person fails to give such security, the licensee may, if he thinks fit, refuse to give the supply or to provide the pipeline or installation until the security has been given.

Where the person has not given the security in subsection (1)

or the security given by the person has become insufficient, the licensee may by notice require the person, within seven days after the service of the notice, to give him reasonable security for the payment of all moneys which are due to him in respect of the supply and if the person fails to give such security, the licensee may, if he thinks fit, discontinue the supply until the security is given.

Return of security with interest