Poor service from MTN

I had a change of banking details and tried to change it at MTN for 3 months. During this time I paid the amount I hade to pay via EFT in order to keep my account up to date. The payment went to I don’t know where because I unfortunately use the incorrect reference number on my payment I tried resolving this problem since March 2026 but NTN was not assisting me in any way. All I got was the same message that my account was not paid and that’s it. No proper resolution and no one cared to assist me in checking where the money has been paid it. I sent proof of payment documents from Standard Bank but MTN did not listening to my complaint and did not care to assist me in any way. I have been a customer since 1996 and I have never been treated in this way and I’d never been giving a you are wrong and we don’t give a damn. Now I paid the whole amount double to get it resolved but now I have to get my bank to get a refund for this payment I did via EFT and it’s going to cost me money

This treatment is unacceptable to me as a client in good standing and no payment was skipped in all these years

I must add I have 7 contracts with them and it’s not that. I am just a normal customer