Mtn is ****

On the 20th September 2026, I went to MTN shop to apply for a data sim contract, of which was unsuccessful because they said I owe them, which came as a surprise. My account was opened from 2020 I don't remember which month but I did an upgrade in 2022 I had to close my account before time in May 2024 because I had issues with them. I was given an settlement amount of which I paid in full, my number was changed to prepaid. When I asked the consultant at MTN shop, If it's possible to chenged the contract number to prepaid when you're still owing fees she said no! I asked legal team the same question they decided to go mute, I've been communicating with them via email from 27 September 2026. Now I don't know what to do Because first all nobody told me about this outstanding amount till I went there for another application. Secondly my line was working just fine, they normally closed the line if there is an outstanding amount. As far as I know I don't owe MTN, my account was closed.