Pay by direct debit each month so am used to it being a set amount
We’re £40 in credit with electricity, so obviously not very much. But somehow we are £400 in credit with gas?! We have an electric shower and hob so the only gas we’d be using would be via heating surely which won’t be used as we come to the summer
Is it better to leave the £400 in the account as a buffer or to ask for a refund?