Terrible service MTN

I have purchased a cellphone from the MTN Cavendish square 4 months ago.The sim was done via contract which took 10 days to sort out .The cellphone was paid cash as to save money on the package.I have been to the store as the cellphone has given me so many problems that i was finally at my wits end.I asked the store for assistance after hearing how terrible it was to be working on a sunday by the customer service team in the store.I requested that the cellphpne be replaced as i paid hard cash to purchase this phone.I was then told to leave the phone at the branch and the process would take 14 working days to asses.Currently i run 7 butcheries in the western cape and i cannot afford to be without a phone.I was then told that if i need another phone ,i am to purchase another phone and wait until my original phone which i also purchased at the store was assessed.Frankly no one in their right mind would purchase another phone from the same store which you currently are experiencing a cellphone issue and terrible service.I have never had such a terrible experience at a store.I did in fact ask for the manager and i was told he/she is unavailable.I am now without a proper working cellphone and R7000 loss due to this.