My tribe has told me that I owe back monies because I was enrolled in a both my u.s tribe and my canadian tribe at the same time

if you are in Marysville, you are probably a Tulalip. in my experience, tulalip has one of the better justice systems around and so it might be worth pursuing a claim.

most tribes, i don't know for certain about tulalip, prohibit dual enrollment.

therefore, you need to formally disenroll from the Canadian Tribe and then ensure that your membership in Tulalip is intact. once that happens, you should begin receiving your per capita payments. i doubt there is a provision for obtaining back per capit payments from the tribe, but you could go after the person who stole your money for fraud. if that person doesn't have any money to pay you back, you might be able to garnish her per capita payments until they are paid off.

If someone fradulently obtained your signature on a document permitting them to recieve your payments, contact the tribe's enrollment office and tribal attorney immediately and inform them about the situation.