My laptop not working. Motherboard has been changed twice within 1 year of purchase. Faulty product.

I purchased my laptop almost a year ago. After purchasing within 7 months my laptop suddenly stopped working at my workplace. Then I contacted dell regarding my issue. After diagnosing my issue they told that the motherboard needs to be replaced. I was shocked to hear that within such a short span of time, how is the motherboard of my laptop damaged. Then they replaced the motherboard and even after the replacement i used to face minor issues like the laptop used to hang when certain apps like YouTube were used . Then after the replacement of my motherboard again after 3 months my laptop stopped working due to the same issue. There is a manufacturing defect in my laptop and hence i need a replacement of my laptop. I purchased it for more than 80 thousand rupees which is a high amount and i cannot again pay huge amounts to extend the warranty of the laptop. Dell is a huge brand atleast it should have some guarantee of it's products. I'm highly disappointed. Worst experience with Dell . Won't purchase any Dell product again and won't recommend it to anyone.