That page is for their home services (e.g. insurance). For energy it's: https://www.britishgas.co.uk/help-and-support/bills-and-payments/setting-up-a-direct-deb

That page is for their home services (e.g. insurance). For energy it's: https://www.britishgas.co.uk/help-and-support/bills-and-payments/setting-up-a-direct-debit#ddbenefits https://www.britishgas.co.uk/help-and-support/bills-and-paym... > Savings: Gas and electricity unit rates are lower if you pay by Direct Debit, saving you £100 in comparison to paying when you get your bill. This is a fairly common discount to receive from energy suppliers, as direct debit payments have reduced administrative overhead compared to payment on receipt.