Pathetic Service

I am so unhappy with the pathetic service from MTN. I have sent an email to the customer care department on the 27th of March and a month later am still waiting for a response. I have however been notified that my query has been forwarded to their retentions department but I am not even receiving any response from them either. I have tried to phone them and have been put on hold for an hour and 15mins. It is unacceptable!!! I will change all 3 of my contracts with MTN and will tell everyone I know about their awful and pathetic service!