I got this response from pnb ,
You have to Complete your Video KYC by Visiting our website www.pnbcard.noclick_in->Apply credit card online ->complete your video KYC
Enter Application number -> OTP sent on registered Mobile number
.
After you enter UARN , generated after filling application, it will show message you have already completed vkyc( if it is already completed). Take screenshot and mail them they will approve it. I did this way and they approved my vkyc.