Or have I just lucked out? We put tenants into our 1 bed flat that was for sale on a month by month contract that was an all rent to cover all bills. I based my sums on previous tenants use age of amnenities. The property is now sold and a final bill for electricity came in at £550. I have been paying £23.00 a month with Eon. If they have caned usesge over and above the norm can I reasonably ask them to pay (or keep the deposit I was about to return). Just looking for advice really.