Cognizant — I am complaining about the employee

I got offer letter from [protected]@cognizant.com. I was interviewed by the hr manager mr. Nataraj.

Find the attachment of the employer's id proof. He asked me to pay 20k for the joining formalities. I also paid that. But after that i didn't receive mail or call from him.

Kindly verify it and do the needful.

My offer letter reference number is 9585885