vlindell - here is the payday law for Michigan (I live there too):
Michigan state laws here -
http://www.debtconsolidationcare.com...pdls-laws.html
Go to paydayloaninfo.org and click on "state information", then click on Michigan on the map that comes up. When the Michigan law comes up, click on "licensee database" to find out if any of these companies are licensed in Michigan. I doubt that they are.
If you calculate (according to the interest rate shown in Michigan's PDL Law) that you have overpaid these loans, you need to first complain to the State's Attorney General (Mike Cox, in your case - there's a link on the paydayloaninfo.org website), then start writing letters to these companies asking to be marked paid in full - and quote the Michigan law to back it up. Send the letters by USPS mail, certified/return receipt requested, so they have to sign for them, and you'll know they received them.
Also, you may have to close your bank account to regain control of your money. These companies will not stop debiting your account, even if you ask them to. If you try to block ACH debits from them, they'll simply change their name, change the dollar amount, or break the debit into two or three debits in order to hit your account yet again. It's also not beneath them to pass a fake "paper" check through your account in order to get the money. Check with your bank first, but closing your account may be the only way.