Cognizant — problem regarding offer letter

Address:

Manyata fecillity bangalore

Sir i attended interview on june 1st. And i got shortlisted mail and i didn't got offer letter till now.in the mail mentioned that offer letter will release in 3-4weeks but it is 6th week till now we did not get any mail about that issue. So please solve this problem. Sir please solve this problem shortly. I hope i you will give replay shortly.
Regards:

Mahendra