Hp — Delay in service faulty product

I have purchased the HP SFR-1004TU laptop on 15 AUGUST 2020 and i have launched the complaint on 24th OCTOBER for keyboard issue, but still i am not getting any call for service or update from HP.
multiple times i tried to reach hp support team but team always said "your case is assigned to service center they will call you, we can't update you much more apart from that".
i am very disappointed about HP service, i am getting lots of trouble while doing office work because of keyboard and screen issue.
request you to kindly align the engineer tomorrow on prior base for this case, but still no one called me, same thing i put them through over mail on 12th NOVEMBER 2020 but they also not replied.
case details are mentioned in below.

case number :[protected]
serial number : 5CD028KRWL
model : HP 15 SFR-1004tu