We have recently moved house and changed gas and electricity suppliers which I have never done before. We were with Southern Electric and were in debit for electricity and in credit for gas, the bills I got electronically said not to cancel our direct debits as they would take out the last of what they need for electricity today and the gas bill says "we owe you....don't cancel your DD, we will put it in your account on or soon after the 1st" sure enough they have taken what we owe them, but the money they owe us (which is stupidly pretty much the same amount!) hasn't been paid back, how long shall I be patient for before calling them? It's not that we need the money I just like to tie up loose ends and would like to have the DDs cancelled before I forget! In the past I have always just been sent cheques.