Never buy a laptop from MTN- worst service ever!

I bought a HP 15 Intel i3-813OU Potter from MTN on line on the 09/03/2021. MTN delivered this laptop at my home. I could not get this Hp, that was on a special promotion at that stage , in the 2 MTN stores in George, Western Cape, so when MTN sales department phoned me and ask if I want to buy one on line ,through the telephonic sales department,I agreed. What a huge mistake!!! Since the first day I had problems with this laptop. It took at least 20-30 minutes to start and was then very very slow between commands. I took it to the Garden Route as well as Eden Meander MTN stores in George but they said that they could not help me as I ordered it online. According to them the online sales falls under MTN in a way but is also not really MTN. What does that even mean??It took them a while to be able to give me a contact number because now I needed to send it back again via a courier ,The first consultant there phoned me back after they received the device and said that Hp said they could replace the device but because it was ordered online it was way to difficult process to replace it and they will only be able to send it through for repairs. Long story short- very quickly the laptop did the same-very slow etc. I have been paying since March last year for a device that I still cant use. Again I send the laptop in- then the technician discovered that there was something loose in the device( they were the only people to ever work on it) and that the reason why the laptop is so slow now, the second time, is because I installed Windows 11. They now want me to pay R606 into MNT account before they will send this useless device back .I wanted them to replace the laptop. My reference nr is 282119