No customer service - MTN

A representative of MTN phoned me to ask if I am interested in upgrading my contract. We completed my upgrade and DSV was at our premises to deliver my device. Unfortunately, as per MTN's request, I cannot use my driver's license or passport as a form of identification. The DSV driver left with my device. I contacted MTN's customer care center and nobody could help me. They transferred me from department to department and/or dropped my call. After 11 phone calls to the customer care center and more than an hour's talk time, someone said they need to cancel delivery with DSV before I can phone customer care to cancel my upgrade. Unfortunately, I have no way of knowing when the delivery will be canceled to phone in and cancel my upgrade. The online upgrade service is pathetic. A service that is delivered for convenience caused a lot more time than upgrading in-store. The service is pathetic and would not recommend using MTN at all as they have no customer service after the contract is signed.