I just realized the card I used to buy a OW ticket on Jet has been compromised/replaced. How strictly do they enforce this rule:

Security Requirement
. The card used to purchase the tickets will have to be produced at the time of Check-in.
. If the holder of the card is not the passenger, then the passenger should possess:
a. A photocopy of both sides of the card, which will have to be self attested by the card holder authorising the use
of the card for the purchase of the ticket. For security reasons, please strike out the Card Verification Value (CVV) code on
the copy of your card.
b. This photocopy should also contain the name of the passenger, the date of journey and the sector on which the journey is
made.
The above document MUST be produced at the time of check-in. If the passenger fails to comply with these conditions, Jet Airways
reserves the right to deny the passenger(s) from boarding.
The details mentioned above do not apply for Net Banking / Cash Card and Cash on Deliver