MTN SA - POOR CUSTOMER SERVICE

Poor customer service - very disappointed with MTN and unfortunately I will be stuck with them for the next 22 months, I have been their customer for 11years and have just upgraded online and their phone gave me a problem within a week, sent it back to Maponya Mall MTN on the 11/06/2022. Phone not back yet, each time I follow up, there is always an excuse, if not offline, call us later. Apparently issue is an invoice that they claim they do not have BUT I left everything that was needed on the 11/06/2022. Saddest part is that debit order is running and I do not have a phone. SALES CONSULTANTS AT MTN JUST DONT CARE, as long as they get paid at the end of the month............