Asus India — Delay in services w. r. t computer hardware

Address: 403507

Website: www.asus.com/IN

I had purchased asus motherboard from flipkart 2 years back.
ii started giving problems 2 months back.
i took the board to the service center in mapusa and they sent the board to asus company in mumbai for repairs.
They said it will come in new weeks.

After 3 weeks i got the board and it had the same problem.
so i took the board to the service center and they sent it back.
they said it will come in a few days and 2 weeks later i got the board which still had the problem.

They have sent the board to mumbai service center again 2 weeks back and i still have not received the board.
whenever i make a complaint, Asus closes the complaint so when i call their call center it shows them case closed.
i am studying computer engineering and this is hampering my studies.
please help.

I have attached the 2 receipts i got when i gave the board for repair/replacement.