electricity bill question

I just moved into a 2 bedrom 1 bath apt. I have lived in apts this size for a few years and my electic bill was never over $200, now this bill is $475 for this small apt. We actually got moved in on july 3, but the electricity was turned on, on june 29th. When we got moved in the AC was broken and ran contionously. So I believe that may be part of the reason for the high bill. If the units appliances are to blame should the apts. help at all with the bill. I called the electric company and they said the meter was right and they said the AC was probably the problem. I spoke with the apt. manager and Im not sure if they are going to be willing to help. Are they suppose to help and what should I do. Any advice would be GREATLY appreciated.

Thanks

If the unit was defective you can hold them partly liable. But if you caused the problem in some way they would not be liable. You would have had to bring it to their attention first.