Pathetic MTN

I received a phone call in Nov '25 from MTN regarding my upcoming upgrade. After explaining I will only upgrade in February as I do not want to incur extra costs. I was assured the early upgrade will not incur extra costs. Upgrade was done, I was issued a new number as my old number was already changed to prepaid. I am now being charged for 3 different contracts. My first official complaint was lodged on 18 February. To date nothing has been done to rectify this problem. Although mtn has admitted the mistake is on their side. I have complained to ncc and the ombudsman. To date nothing.