That Midland Credit out of San Diego is a piece of work. I paid a debt to another collection agency and somehow they were seeking collections as well. After playing phone tag with them, they had the audacity to tell me that this could be cleared up if I called the other agency, after I faxed them a receipt of payment and the attorneys' faxed them court documents stating judgment satisfied, and asked them to forward the paid funds to them LOL.
I have learned, it is best that if a collection agency comes into play, call the original debtor to find out who really is responsible for the account. Actually, that is the second lesson, the first is I pay bills on time every time.