They do not entertain C2C. If you have account with PNB and want a new card then simply apply online and you'll get the Card. If you already have a PNB card and want an upgrade then send them an email with income proof at
creditcardpnb@pnb.co.in. Upgrade can also be applied on their App 'PNB Genie' but you still need to send income proof with the Service Request number.