SHOCKING SERVICE FROM MTN

Customer service is shocking, signal coverage is shocking. MTN managed to mess up my daughters insurance claim by blacklisting my phone which resulted in an addition cost for excess to my account as both my phone and her phone was replaced - one of which was never lost - resulting in additional excess for my account. Took 2 weeks for her sim card to be activated, 6 weeks for the insurance claim to be sorted. I was with Nashua cellular but was told by MTN I was under insured for my iPhone so replaced with Samsung. Account has been totally messed up with my daughters call cap being removed, more waste of money for me. Customer service never replies to mails, I really do not have the time to waste holding on to get through to a person which can take anywhere up to an hour. MTN shops a total waste of time because you either have to stand in a queue for ages waiting for a consultant or you have to wait with a consultant while they try to get through to the customer service. Do not know why it is called service because you don't get service. Latest debacle mailed customer service on 23, 24, 29 June - posted on MTN FB page on 1 & 2 July. No response. I want my contract cancelled.