Frequent Flickering of Laptop screen and Online registration Problem for extended warranty

[Swamiji7]

Right from the day i bought this laptop(HP PAVILION AU008TX), i was very much dissatisfied with the (i) laptop's screen, and with (ii) the website of online registration for extended warranty. 

(i) Bought the laptop on 24th of July, 2016, right from the day until now, the laptop's screen is flickering frequently, with many lines moving from top to  bottom of the screen, and when i try to open an application, the screen flickers for sometime. For this reason, i ve taken the notebook to the nearest Hp showroom from where i bought this laptop, "HP IT WORLD",Sanatorium, Chennai,  which is 20 kms from my place.There the HP official, made some setting changings of the Nvidia Graphics, stating that there would be no problem further regarding the flickering of the screen. But the problem continues.Waste of time and energy, travelling 20 kms!!!!

(ii) Then i tried to register for the extended warranty via Online method after uploading the required documents and send button was clicked, the page throwed some technical error, which i ve taken the photo and enclosed here. There is a lot of problems regarding the Online registrations for Hp, the website is very poor for online registration, i ve became frustrated and i ve wasted my time a much more for this  which is a vain.

                I am looking for  the replacement of the laptop if necessary solutions are not provided.This is a 83.5 K laptop, and a more prompt customer service is expected from HP which seems to be pathetic till now. 

                I request HP to take the necessary action, at the earliest to make me feel opting for HP was not a blunder!!! and to prevent me from recommending HP to my kith and kin..

                I am not trying to accuse HP here. This post just reflects how frustrated I am, after spending such a huge sum!!!