All about the money with zero service

2 years ago I took out a contract for a laptop. I asked for insurance on this. A couple of months later there was a fault on the charging point - I had to send it in for repairs. MTN sent it to Durban, where they first lost my laptop, then found it and sent it back 2 months later without my charger. After complaining, the sent me a charger that was the wrong one for the laptop - it took a week to arrive because they sent it to Poffadder instead of Gauteng. Now, the charging point is again faulty, and when I took the laptop in, they told me that they never actually put the insurance request through despite it being on my original paperwork, and if I want it fixed I must pay for it. I cannot get any joy from MTN ever. I have 3 contracts with MTN, but after this I will not be renewing. I can never get through to a call centre / customer sevices - in order to find out anything I have to actually visit an MTN shop. The service centre in Midrand was extremely rude when I called them, and I have had it in chunks with MTN.