Your next step is to figure out what you legally owe for each loan. Then determine if you've overpaid them or still owe them money.
You will need to close your bank account. When you go to the bank to do this, please ask your bank what their policy is on ach transactions going through for closed accounts. Some banks will force the closed account open and allow the transactions to go through. If your bank does this, ask them to put the account on deposit only, or block all ach transactions before closing the account. Explain to them that you are trying to prevent fraud on your account, and that these companies have a history of debiting people's accounts without authorization.
Next you need to send letters to each pdl, certified mail. You need to have 4 main parts:
1. "I revoke any and all wage assignments I have signed with XXX Company."
2. "I revoke any and all authorization I gave you to debit any bank account I may have now or in the future. You may not attempt to withdraw funds from any account of mine in any form."
3. All communication in this matter needs to be done in writing. Phone calls from XXX Company will not be accepted. **See examples of cease and desist letters. This doesn't apply to the original creditor, but it may help stop them from calling at work.
4. According to Iowa laws (cite laws) I legally owe $xxx. I've paid $xxx so far to you, therefore I owe/do not owe $xxx. I demand that my loan with XXX Company be marked paid in full, no further collection activities be initiated, no negative remarks be left against me at any reporting agency, and proof of this be mailed to me at *address. I have filed complaints against your company with ***state attorney general's name. The case number is **case number. ***If you still owe money, offer up a payment plan.
You also need to file complaints against these companies with your state's attorney general's office and finanical dept.