If you are a member of American Express Membership Rewards you can transfer your Membership Rewards points, in 1,000-point increments, to your Virgin Atlantic Flyer Club account. Usually, 1000 American Express Membership Rewards points equals 1000 Flying Club miles.
But currently there is an increased offer whereby Amex is offering a 10% transfer bonus to Virgin Atlantic. Instead of the normal 1:1 transfer ratio, when you transfer 1,000 Amex points to Virgin Atlantic Flying Club, you will end up with 1,100 Flying Club miles.