MTN's unsatisfactory resolve

Dear ombudsman and MTN. To whom it may concern, I have not had the best experience dealing with your legal team, nor year complaints department. I have paid up my account and provided MTN with my paid-up letter. It has been two months and MTN is still sending debt collectors to contact me. I have to in turn provide each debt collector with my paid-up letter. How is it that after two months of non-stop emails to MTN have I yet to receive a response. My credit score has been in decline due to the inability of MTN to fulfil their end of the bargain. All I need is for my account to be closed. ***-f209-40f5-818c-9f70fd4db164 ***/BA*** ***-8b4c-4d13-a86b-60137b780766 Needless to say, I will not be taking out any contracts through MTN any longer.