Virgin atlantic LHR check in

Hi all,
I'm all booked up to fly out to the states for 25 days on August 12th, and I was wondering about the check in process as I've never flown virgin, or to the USA for that matter!
my question is will i need to show the card the flights were paid for at the airport? as they were booked on my girlfriends credit card, unfortunately there is no way of getting this card as she is already in the states!
She said that she didn't have to show it when she checked in last month but I'm very worried about it as my email confirmation said please bring the card as some airlines require to see it for security purposes!
Any information or advice would be greatly appreciated
Jack
I'm all booked up to fly out to the states for 25 days on August 12th, and I was wondering about the check in process as I've never flown virgin, or to the USA for that matter!
my question is will i need to show the card the flights were paid for at the airport? as they were booked on my girlfriends credit card, unfortunately there is no way of getting this card as she is already in the states!
She said that she didn't have to show it when she checked in last month but I'm very worried about it as my email confirmation said please bring the card as some airlines require to see it for security purposes!
Any information or advice would be greatly appreciated
Jack