Worst service from MTN

My husband upgraded online for himself and my son, we have been battling since 20 August to get the phones. First they delivered only my husband's phone. We sent it back as we upgraded 2 phones. Today they delivered on my son's phone. Tried to phone MTN to find out what is going on. Was sent from one person to the next and nothing is resolved. Their service is one of the worst I have encoutered. I dont even understand how they can employ such *********** people. One would expect a company as big as MTN would know what serice delivery is. They should seriously work on their service delivery. They have changed my account to the new upgrade but I am still without the new phones. That I call *****ing from their customers becase how can you charge something that jas not been received