Makro PE/Dell repair agent extremely poor customer care

My company purchased the Dell Core i7 10th gen laptop at Makro Port Elizabeth in March 2021. I worked on it for two weeks and got a blue screen error. Took it back to Makro Port Elizabeth, who uninstalled Windows and reloaded an older version, don't know why. Got it back, it worked for a week, gave another blue screen, took it back to Makro Port Elizabeth who sent it to the repair agent who uninstalled Windows and reinstalled it. Got it back again, laptop worked for a week and then another blue screen. Now it's the 3rd time taking it back to Makro, who sent it to the repair agent. Repair agent again just uninstalled Windows and reloaded it. Collected my laptop on 6 August from Makro PE, this morning (10 August 2021) I switch it on, it remained on for 15minutes, and then another blue screen error. With a R16 000 laptop, brand new, purchased in March 2021, I can do nothing. Dell won't credit as it is not a hardware issue, so basically I have a brand new useless laptop, and Dell/Makro is sitting with R16 000 in their bank. If I go back to Makro PE, it will be the 4th time this computer goes to the repair agent, and I know what the outcome will be as I have been advised already that I cannot get a credit as it is not a hardware issue. So our company just donated some money to Makro PE/Dell for a piece of s****.