Unfairly treated

My complain is with MFC on the 19th I’ve settled my account in full and on the 21st a debit order also went through. I have been in communication with MFC since last week addressing the same issue that the debit order amount should be refunded and they agreed. upon discovering the refund will take longer approximately 10days , I then instructed them via email not to do anything on their side, I will reverse the debit order with my bank. Last week I got the Natis documents and the letter stating the car is fully paid up. I was also suprice to get a call from their collections department stating that my account is in arrears.

This week again I got a statement stating that I’m in arrears with the amount of 1529.32. I also got a call from Regent insurance stating that I’m behind with their insurance premium and they were also referred by MFC. I also spoke to a collection team leader last week who promise to refer this matter to their admin department and I'm still awaiting feedback, while on the other hand I'm being harassed with phone calls.

I’m disappointed and feel now being treated unfairly and this has also affected my ITC record as it shows I defaulted in my account. I need an apology letter, closure letter and my ITC being corrected. your assistance will be highly appreciated.