No response or help from TFG

I recently discovered that I still have an outstanding balance on my Markham account. I sent an email to the TFG payments department yesterday and still haven't received a response. I called into the call center this morning and after 9 calls, speaking to 9 different call center agents, I have be referred to other companies who are still saying that TFG needs to deal with it has been withdrawn from them. I have been given 4 different numbers for the TFG recovery department, but no one answers. I left 2 voice messages and have not heard from anyone. All I require are details to pay the outstanding amount and a letter to state that the account has been paid up. I seem to be getting no where with the TFG call Center. I need the letter quite urgently, but TFG have been no help at all.