This can be found on the top right hand corner of your gas bill.
Please enter all 7 digits of your customer reference number - the first 6 digits in the first box and the final digit which
appears after the hyphen in the second box.
For example if your customer reference number is displayed as 123456-7 please enter 123456 in the first box and 7 in the second box. If it contains a '&' symbol please enter 123456 in the first
box and & in the second box.