Cognizant — offer not released

I have taken interview on 17th and hr confirmed it's cleared, after that by 20 march 2018, i got a photo upload mail, post that i have send so many mails to hr and even i have forwarded all mail trails to [protected]@cognizant.com, wher e a person responded asking the tag team to update the status, but after that no communication on offer letter, please can anyone help me out with this regard

Gunasekara. [protected]@gmail.com
[protected]