Phone repairs still in limbo

My phone had been booked on a Thursday the 1st of January 2015 for repairs at the MTN store in Rivonia/Morningside. To cut the long story short, basically, I have been showed the middle by the service provider as after 3 months I am still paying for a phone I do not have and services that have not been rendered to me. I have gone through all the possible channels to communicate with them to resolve this matter including this platform on hello-peter with no success. I am shocked by the nonchalant attitude as i have been a loyal customer for over 10 years. I am appealing to the reader this complaint from the service provider to put in a good effort in resolving this matter.