Consistent Touchpad problem

My device, which is an almost brand-new laptop, has this touchpad problem. I never use my touchpad if I use my mouse, which is 99% of the time. Anyway, I have been experiencing the touchpad problem since the day first day of purchase. Since I was a last-year Ph.D. student and writing my thesis, I did not have time to pay attention to the problem. Once I did all the diagnostic tests and get support from the service, I was told that the part needs to be replaced. I was relieved that the problem would be fixed soon. The touchpad was replaced and It was fine after they replaced it As I mentioned before, I barely use it.  Once I forgot my mouse and I needed to use the touchpad again, the problem was there again. Again, I contacted customer service and they did all the diagnostic tests again. The part needs to be replaced again. Once I look up the issue, I realized that I am not the only one having this problem. Anyway, the second time they replace my touchpad, I was told that they will do something different this time. Last week, while I had to practice/edit my talk during the flight I realized again the touchpad is not working properly again! I was so sad and could not do anything that day. Today, I was trying to explain my situation and customer service told me that I need to pay for the service, part and I need to send my laptop! This is insane. I was told that this problem was solved last time and hopefully I will not have the same problem again! Is it fair to ask me to pay for a service that has not worked twice? Why would I do that?  I would like a permanent solution to my problem!  FYI, the second installation was done on 10/10/2022!