Non-expired credit card sign-up bonuses
EXPIRED OFFER:
QUOTE
This offer is even better than the usual $100 after $500 in purchases.
You must make $250 in purchases in the first 3 months. Offer code is DARR. You MUST apply through the special offer link (apply.Discovercard.com), not through the regular Discover Card site.
Or you can apply by phone 1-800-210-9022.
I did a similar deal back in February and got my $100 cashback in April.
source: forums.slickdeals.net/showthread.php?t=823152&p=11369345