BAD SERVICE

I am writing this message as I am frustrated at the time I wanted to upgrade I had 10 consultants calling me today none responds to me I have to continuously call email and follow up and I don't get a response. I have upgraded to a Sony Xperia M5 out of box fault on the 12th of November I received the handsets on the 16th I reported it faulty on the 17th handsets was collected the 19th I was advised in 4-10 days time I would be receiving my handsets yesterday I was told a total different story and today by 12 I emailed the consultant to ask please keep me updated on the status on the headsets still no response I am very sorry but this is ridiculous treatment , I cant call after the consultants and don't get response I am very Annoyed and I have to pay for something I am not using . Please get the matter sorted out or cancel my contact for Good feed up with this service from MTN I am a client since 2008 and this is enough If I don't get feedback by tomorrow this contract needs to be cancelled with immediate effect .