Dell India — Unavailability of products and worst customer service

I have purchased my Dell Vostro 3500 laptop on[protected]. From last 2 -3 months there have been hardware issue related to fan. I have submitted my laptop at Ahmedabad, India on 12-8-22 and they have identified the issue as the same. But still i have not got my laptop back, as they are saying that there is unavailabllity of parts so they are not able to fix it. I have been facing soo many delays because of it. Customer service is the worst, they never pick up calls, not do they respond back. Fed up with this blame game on different reasons. Please fix my problem asap