Cognizant — onboarding pass status

I have received offer letter from cognizant on 1 june, i got my date of joining on 28 june 2019.
In a few days i received mails regarding onboarding formalities which i completed step by step then suddenly one day i was unable to login to the onboarding portal to check my pass generation. Thereafter i started mailing to my recruiter, heldesk, hr but none responded.
So this is my situation i have left my current organization as well.
Any help would be appreciated