MTN Poor Service

MTN has lost me as a customer forever. I have been a loyal customer of MTN for more than 20 years. I am currently due for 3 upgrades at the end of September 2019. I will be going elsewhere. I obtained a Apple iphone in July 2019. Now in September 2019 (2 months later) the phone will not charge. I went into MTN Cape Road Newton Park Port Elizabeth today and was told by a consultant that my phone would need to be sent to Jhb for a quotation!!!. I asked to speak to a Manager and a man appeared from the back and told me the same story but that the technicians in Port Elizabeth would give me a quotation. What is a warranty for? Now I must continue for the next 2 years paying for a phone that does not charge. Poor service MTN