Customers being forced to accept defective products!

I recently purchased a laptop for my sister to use for her studies. After a few months of using the laptop, it started freezing, screen would turn blue and then make a whirring sound. I requested that the laptop be repaired. It took over a month to get the laptop back and once we did it was evident that nothing was done apart from factory resetting the device because a week after getting the laptop back the same thing happened. I took a video and I then asked for a refund and I am now being forced by Takealot staff to accept the faulty device because they are refusing to refund me. The reason that they are trying to force this faulty device on us is because the warranty is going to end soon and we will be stuck with a laptop that does not work. They keep telling me it is up to the manufacturer to decide whether or not I will be refunded and according to the manufacturer this device is now allegedly repaired after sending it in for a second time. I have been having back and forth emails with their team where they are insisting that the device be returned to me. I have never had an issue with Takealot before but this experience has left me extremely disappointed and disgusted with the level of service I have been receiving. The laptop is used for my sister's studies and who in their right mind would accept a laptop for the second time after nothing was done the first time. I did not know that Takealot forces their customers to accept faulty devices because you refused to refund them. I even requested that a credit be added to my account so that I may purchase a different brand on your website. It has been weeks since I requested a call from the team. No one has responded till today. You are welcome to keep your defective laptop and my money since you are refusing to refund me and I am refusing to accept a defective product.