Contract Auto-Renewed, and Cannot Get a Refund

[RPW]

My question involves a consumer law issue in the State of: California

I had a contract from 5/2010. It was a year contract. After that it went month to month.
My card has been billed auto. I finished my contract 5/11.
I have 400.00 in prepaid services after the end of my contract.
They are refusing to return my money. I am unable to use the services do to a medical condition.

Is there something I can do?

[Mr. Knowitall]

If you signed a contract that renews after the end of the initial lease term, then that's what happens - you cancel the contract or it renews. If you owe additional fees due to your failure to cancel the contract before it renewed and additional fees were incurred, then that's what happened. You haven't told us any of the relevant context, so there's not much more we can say.