MTN *****

I have been trying to get a response from MTN about an ******* SIM swap that was done on my phone early id December and then R18000 of international calls that were made using my number. I have lost count of how many times I have been into a MTN store, called their customer centre, emailed customer care. I have submitted an affidavit but have yet to hear from their ***** department. I am desperate for some communication from them on what can be done to resolve the problem. My phone has now been suspended because although I have paid my monthly contract amount I have not paid the money for the international calls as it is part of, I hope, an ongoing ***** investigation. All I want is for someone with the authority to sort this out to contact me.