Disgruntled mtn client

I have a contract at mtn and my store that I deal with is in gateway kzn the store in perticular is directly opposite the Telkom store in gateway shopping mall my device had been booked in for a software malfunction which took 1 and half weeks to be picked up from the store to be moved to the Samsung customer care office which is based in river horse valley it then took them a further 2 weeks to diagnose the device and find the issue, they then gave me a collection number which I had taken back to my store of which my sales agent had then made the necessary arrangements which took a further week and a half between my sales agent and the person they dealt with myself the cleint was not kept in the loop Vai mail, text or a phone call which lead me to travel to the store every second day for the past month to find out updates on my contract which has been putting strain on myself n my business as I'm a device down and its costing me I will be paying for another month in a weeks time which means I've paid for 2 months with no phone the customer service from this branch is really pathetic and I've taken the necessary steps to deal with the store as well the sales agent.... Hope the right people get know about this and make some changes with the staff as it's frustrating to have to run up and down when u have these people in those positions to perform these duties