Unfortunately, this is a complicated issue that is being litigated now. It is not entirely clear if tribes are beyond the reach of state and federal laws under tribal sovereign immunity. Some states have made these kinds of loans illegal (with their insane interest rates). In short, the only way you can get help is by speaking with a local bankruptcy or consumer law attorney.
This answer is for informational purposes only and is not legal advice regarding your question and does not establish an attorney-client relationship.