With debt collectors you want to take every precaution to be sure that your account is recorded as paid in full. Use this letter when making the final payment
This is a way to force a receipt for final payment. It is tuff to get a paid in full letter after you have given the bill collector the money. This letter allows you to confirm upon cashing the payment that the debt is paid in full. i would also recommend to follow up with the agency, advising that they have cashed or received the payment and you would like a confirmation letter that the debt is paid in full. Be sure to remain persistent, if the collector believes you may reverse the payment, then they will send the letter asap. If you are making a settlement then make sure you get a letter confirming the arrangements of this settlement.