Do NOT attend AIU. I completed my Associate's with...

Do NOT attend AIU. I completed my Associate's with AIU. When I initially decided to enroll the financial aid dept. assured me that an AA costs generally $15-20k. They are now trying to collect $26k from despite the fact that I've already paid them $10,000 out of pocket.
Every few months I'd get a letter saying something like "Accept for new charges to continue your program" or something like that. The financial aid department when i called to find out what it was said it was just the installments of the original agreement coming through incrementally. It has now cost me almost double what it ought to have.