Asset Acceptance is fraudulent and deceptive and needs to be punished

I paid a debt off about 6 times over with Asset Acceptance, and on the phone last April 2008, I expressed how much I had paid in over a 5 year period, and they kept telling me the debt was still over $1600, which is what the debt began at. I set up automatic payments at $150 per month. I argued that they had made their money probably 10 times over, so lets get this paid off. I negotiated a deal that they would stop the monthly interest charges, and they said it would be paid off , with a last payment in December 2008. I asked at that time for a letter stating our agreement, and was told they would draft a letter and send it to me. Then in January my bank account was deducted again.
I want to know if there are any attorneys that will help me get some of my money back from this rip-off company, and help protect others from the same scam. I would split the recovery 50/50 with whomever will help. The statements I get monthly have never given me a payment amount or balance of the account, which I requested like 100 times, but they just ignore my requests. Should I tell my bank to stop payments to this company? Can I legally go after the agent personally also for deceiving me and not complying with my requests? I know there have to be some kind of rights violations they are guilty of in this case.