Laptop deal gone bad

Hi

I had 3 cell phone contracts with mtn. It was the end of the contracts and I canceled 2 and the other I upgraded to a HP laptop deal. The contract was signed on the Thursday 29th July 2021. The next Tuesday I took the laptop back to the mtn shop in Somerset mall and complained that it was faulty and doesn't work properly. I told them to take it back and cancel the contract. They told me this is not how it works. Gave me a number of technical services to call and collect the laptop from me. I called. They told me to reboot and update the laptop. After this still it was not working. I went back to mtn again on 11 August 2021 told them this is the case. The consultant and the manager checked and promised me they would have it sent to technician services and they will update me. They gave me one of the consultant number to contact for further updates. 3 weeks pass by and numerous messages and calls later without response from mtn. So today on 31 August I went in to mtn again to find out what is going on. The manager comes and tells me the laptop is still in the store and they had courier problems. 3 weeks they did absolutely nothing to help the situation. I am furious. And I want everything canceled. She tells me it's impossible to be canceled. Pls advise. I refuse to pay for something that did not even work to begin with and I am appalled at the awful service of mtn Somerset mall.

I hope that you would be of assistance to me. Pls advise what I should do. As according to the mtn manager there is no consumer protection for customers who buy laptops from mtn But they will not cancel my contract.