Cognizant — not received my offer letter

Address: Hyderabad, Andhra Pradesh, 500017

Hi,
This is bhanu prathap from hyderabad. I attended interview at cts hyderabad on 25th december. I cleared all the rounds. And i had my documentation twice but i din't received my offer letter yet. Meanwhile i reached to my hr and asked about my offer letter he said that "we it will come"... It had been 3months... But still i dint got my offer letter...in recent time i reached to hr and asked about my offer letter... He replied "the procee has out of my hand i cant do any thinge just apply for job again"... Is that fair?... What should i do now?... Cognizant is one of the company i know... But i did'nt expected this from cts... Still i have a hope on cognizant that will solve my problem as soon as possible...

Regards,
Bhanu prathap,
Email id: [protected]@gmail.com