Bad quality and service

Purchased a laptop around April 2024, it was returned early November, it switched totally off and we requested that it must be fixed or replaced as it's just over 6months of usage.

The laptop was returned back to us without checking what's wrong, instead, they claim no serial number was found, if a well-educated person with common sense had to scan the QR CODE that's available on the laptop would have found the serial number because no one wants to take accountability for poor product and I insist that Takealot intervene as this product was purchase through Takealot! I called again on the 15/12/23 and the lady assured me she will escalate this matter. Till today I have not receive no form of feedback! Can I please have a full refund so u can purchase my daughter a new laptop of quality as school is starting soon