1. Make sure they are not licensed to lend in your state.
2.close your bank account
3. send a letter to them revoking authorization to debit your bank account and requesting your loan be paid in full and a refund issued if you have overpaid. Be sure to insert your state statutes into the letter. There is a template letter on this website. You can do a search to find it.
4. send a cease and desist letter to any collection agency that is contacting you about the loan. You can find this letter on this website, do a search or go to the Federal Trade Commission Website. I believe there is one there.
5. File a complaint with your Attorney General, the Better Business Bureau, the Oklahoma Attorney General, The FBI in Tulsa Oklahoma, and the Bureau of Indian Affairs in Oklahoma.
6. STAND YOUR GROUND