Dell's Disgusting Customer Service and Experience

XPS 8940 - I purchased my DELL computer over a year ago as I am an individual who uses their computer on a day-to-day basis. I am so disappointed with this purchase. The computer was overheating, running really slow, freezing, and crashing. Dell sent out 3 technicians to repair the PC but they failed. The third technician tried to explain to Dell Support that there is a fault with the computer, and they responded to the technician that the customer needs to accept that's how their computer will be...seriously absolutely disgusting. After this comment, I asked for a refund, Dell picked up the computer on the 9th/1/2023 and it was delivered to them on the 10th/1/2023 and to date, I am still awaiting a refund. It has been 3 weeks and I still haven't been given my refund which they assured me would happen within 10 business days. I am left without a computer and a large hole in my pocket. I have been back and forth with Dell Support via email and I am absolutely disgusted with the customer experience and customer service. I have numerous emails where the Dell Support Staff member has told me to 'give us 3 business days to issue the refund' over and over again. I've been waiting 3 weeks for a refund that was supposed to take 10 days. I received an email from Dell today, guess what it said...'give us 3 business days to issue your refund'. What a joke! All I want is a refund so I can purchase a new computer, but it seems like Dell is struggling to issue a simple refund. Looking at the trend in these emails, after 3 business I wonder what Dell Support will write in their next email...'give us 3 business days'