not sure if anyone is with BG.. but when they re estimate your usage/direct debit payments...if you have more than £100 they are suppose to automatically refund you tell them otherwise, of course! you can leave it in your account as credit towards your next session. I asked for £100 from my electric and £100 from my gas as I was well in credit and my direct debits would not be changing (at the mo) £200 better in my account than theirs! 
Fingers crossed for sleep tonight🤞






