Horrible and unprofessional service

I have been having consistent issues with their services.

Firstly when I was opening my contract with MTN the sandton city branch (next to checkers). It took them a month to finalise my contract.

I was first assisted by a gentle who apparently lost my documents. When I escalated the matter to the manager in store, they told me they found my documents laying around in some box. I immediately informed them that according to the POPI act no personal information should be left laying around and should be stored in a locked placed. The manager informed me that they do not have facilities to keep the documents in a safe locked placed and hence why my documents were placed in a random box. To me that is totally unacceptable.

A month later my account was debited with an amount of +- R 14 000. I called the MTN store and they said they would rectify the issue. I kept calling them with no avail. I went to the store and escalated the matter to the manager and I still did not get help. I had to continuously call them. A month later they told me the matter had been sorted.

A few days laters MTN debited +- R 25 000 from account. It took them another two weeks to rectify that matter.

It was Brought to my attention two days ago when I was applying for finance for my business that MTN has listed me on ITC and it has affected my credit scoring. On ITC MTN has listed me as failed payments and have noted that I owe MTN R25 000.

I called MTN asked them to rectify this matter. The bank has requested me to get a letter from MTN stating that my account is up to date and that I have never missed a payment. However I am struggling to get that letter. The MTN at Sandton city is not assisting me instead they keep ignoring me calls.