MTN Don't Care

I did an ugrade on 2 contracts on 2 January 2021 as these qualified for their upgrades. At the end of January 2021 I found out that MTN had double charged me for the old device and the new device and I requested this to be refunded on 4 February 2021. MTN then double charged for February 2021 as well. Eventually in early March 2021 a pro-rata credit was passed for the February 2021 double charge, even though the upgrade happened in January. No credit for January was given. At the end of March 2021 I was again double charged, which should not have happened if they had followed through on the logic of a pro-rata credit being made.

I have lodged 5 complaints with MTN and merely get canned responses. I have had my service suspended in early March because I had not paid the overcharge by MTN, managed to get re-connected. MTN have again tried to suspend my service today. I have resorted to reporting MTN to the ombudsman but even this does not appear to have brought any relief to me