Cognizant — Offer letter not received for interview on 31 Oct 2020

I have attended the interview on 31st OCT'2020 and cleared the technical round and completed the HR discussion as well. After following up with HR I got a call and told to attend the Live Interview session. I have attended it and filled the Online CIS form as well. I

As per the HR discussion I have been informed that I will be getting offer letter with in a week after attending the live interview session and filling online CIS form. But it has been 2 weeks till now I have not received any offer letter. I am trying to reach out to HR but no response.

Kindly help me in getting to know the status of my offer.