EARLY UPGRADE SETTLEMENT FEE not explained

I have upgraded with MTN on 2022-04-29 and after a three week struggle managed to get my device but the biggest surprise which up to date 2022-07-21 has not been resolved despite numerous queries and receiving of reference numbers and assurance that "we are working on it" from the MTN on Facebook was: EARLY UPGRADE SETTLEMENT. When I upgraded over the phone the agent Mr JJ VAN NIEUWENHUIZEN never informed me that if I upgrade before July 2022 or at the end of the 24 month period that I will be penalised. Well I received a nasty account and was billed r1200 for "EARLY UPGRADE SETTLEMENT". Once again I want to reiterate that my queries so far is in vain and I will take MTN to ICASA. MTN is really a ******* company where they dnt follow consumer protection act policy. It seems as if their employees are specifically trained to be professionally ******* in a legal but ******* manner and then they frustrate you when you enquire. To me MTN is one of the worst providers and I will not recommend them even to the devil . I have explained to numerous agents if I have been informed about this early upgrade settlement fee I would have waited until the expiry at end of July 2022. Im disgusted and enemy number 1 of MTN in my own right