Cognizant Technology Solutions — Offer letter not received after selection, please help.

Hi Cognizant Team,

I gave my final round of interview on 29th of June, post which I got call from the HR who asked me to submit few documents and confirmed that I am selected for infrastructure developer profile. I did submit all the documents as requested.

On 6th of July, I got a call from the HR in regards to salary discussion and she mentioned that I should be receiving the offer letter within 2-3 days. This is the 7th week but have not received the offer letter.
I tried contacting her though emails and phone calls but did not get any response.
I even contacted the cognizant support but that did not work either.

This is not fair as I have a right to know what is going on and why there is no responsibility from the HR to atleast reply to the emails or calls and update me regarding the same. I have saved all the conversions that I had with the HR.
The HR email address is ankitha.[protected]@cognizant.com.

Please help me with the update.

Regards,
Komal Jaiswal