Tata Motors — Non availability of driver side Seat Belt

I own a Tata Nexon. Driver side seat belt of my vehicle got stuck on the way during my trip to Lucknow on 30.10.2021. I had to drive on expressway without seat belt.
I went to TATA service center in Lucknow for replacement of the seat belt but it was not available there.
I returned to Gurgaon after diwali and contacted TATA Motors Auto Deck service center in gurgaon on 08.11.2021 where i go for regular service of my vehicle, service center informed about non-availability of seat belt and ensured that the same shall be available by 13.11.2021.
I reached service center on 13.11.2021 but again i was informed that seat belt is not available. Service executive informed that the same shall be available by 17.11.2021. upon calling on 17.11.2021, i found that the seat belt is still not available.
This is getting ridiculous, more than half a month has passed and TATA could not provide seat belt for my vehicle. such a shame.