Hp Laptop — worst service by HP engineer

I have purchased HP Notebook - 15-r204tu 15 days back.. I am facing a headset issue wen i plugged in my headset voice came from both headset and speaker as well. I raised this request to customer care they tried to resolve issue on phn but fail to resolve this.. Later on your engineer visit my place and without any anlysis and forcefully he opened my laptop and fail to fix it and disconnect my lappi's fan due to which my laptop stop working also he carried CPU fan with himself sayng he will fix it with in 1 hr but still he didnt come and laptop become a box only that was fully new laptop and opened it also misplace its connection. So now I dnt want that product I want replacement as product is fully new and your engineer create a new problem instead of solving existng problem. I will not accept this product at any cost because my product is totally new i dint use it properly. I hope you will take action ASAP req product and service engineer also who is unskilled and inefficient and still he opened my product. I am old customer of HP I have already a 1 HP product that is working fine thats y I choose again HP but this time disappointed very badly. Desirable resolution - either replace or refund(if refund then it will be good- preferable) Product and complain details Product number: K8U02PA Serial number: CND5074R7C Case ID number [protected]. Service engineer details Mehndi Raza; phn- [protected]