Worse customer experience in the last decade

Terrible Customer experience. Since MTN has changed over to a new billing system in May everything turned into a mess with customer care Having a very non care attitude with no permanent resolution. Every month my account gets suspended without notice due to an un allocated payment from May. They no longer send out Invoices and statements and getting something from Customer care is near impossible after holding for hours on end. They always give you a reference number and nobody ever gets Back to you. Forcing you to phone back by holding again for hours and starting the never resolving cycle again. They aren’t canceling contracts as per agreements and keep on charging for cancelled contracts, then suspend your linked numbers when not paid. There is no way of escalating or additional support to resolve queries.