ask for reconciliation with full copies of the invoice. You want copies of the full invoice. full stop. it is what any court would agree is reasonable if the landlord is expecting you to pay a portion. there is always ways to get copies of bills don't let them say they threw them away - they can call the utility company if need be.

You have a couple of choices here - can you afford to move? no? then perhaps a frank discussion of what the utility bills really were, what you paid and what kind of reconcilatio process can be done to make things even.

if you can afford to move, don't pay another dime towards the electric bill and let them TRY to evict you while you have the threat of fraud on them.

Judge won't take none too kindly and I believe there are strict statutes about not doing this in particular.