GMAC Mortgage Corporation Refuses to terminate PMI despite Calls and Letters, Internet

GMAC Mortgage has continued to redistribute additional principal paid to my load to their terminated PMI despite letters and phone calls. They have re-routed monies put to principal, falsely stated that escrow amount in the same amount as PMI are due. By the way my loan has been down to 64% of the original loan - the cutoff is 79% where they have to end PMI when they are notified by the mortgagee or borrower. I have filed a complaint with my state Consumer Protection Agency and nothing is done. Just reporting a Scammer. Never get a loan with GMAC as they practice consumer fraud and abuse of their loan recipients.