Horrible Service

Utterly disappointed with the level of service MTN feels is okay. Got my brand new Iphone less than 3 months ago. It's worth R25 000 but overheats and shuts down in less than 3 months. Went to the local branch to give it back. Was advised that I first had to submit it for a warranty review and then they'll decide if they give me another unit or not. In the meantime I still need to pay the installments of the overpriced phone that's NOT working. Phoned to check up and a week later the phone hasn't even been booked in and I spoke to 4 people to try and get some help before I was eventually told to just keep calm as it will take at least 4-6 weeks before they decide whether they will refund me or not. So I'm leaving for Turkey on the 12th of June with a piece of nonsense phone that's not working. I run my ENTIRE business from my phone which means I pay MTN over R 3000 a month anyways for my contract. I've been with them for 10+ years. And still they don't feel its necessary to give me some level of decent service. I never complain but I've had it with paying for something I don't receive. Will be moving my contract for sure.