check this link out:
https://emailpreferences.usbank.com/...t=freeflight15

Activation and $500 net purchases by 10/31/09 are required to receive 15,000 bonus FlexPoints.
Registration at flexperks.com/freeflight15 and $2,500 total net purchases by 10/31/09 are required to receive 2,500 bonus FlexPoints
20,000 FlexPoints for a free flight up to $400 ticket value.


T&C says they match offer number with post card they sent you .

maybe we can use 36991 or 96 offer code and still get this better offer through above link. what do you think?
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Registration will be void if the promo code and last four digits of your FlexPerks Visa Account Number you entered do not match what was provided on your card carrier mailing. " However, they wuld match just using different link.