You can cancel your Direct Debit through your bank or building society. 

You should cancel it 10 days before your next payment is due. That’s so we can process it in time to stop collecting any money from your account. 

You get a discount for paying by Direct Debit. It’s £4 per fuel type, per month. You’ll lose that if you cancel, so your standing charges will go up.

See different ways to pay.