Everyone, it seems, had a different offer. Mine was that for every month I spend over $650 on gas, groceries, dining out, home improvement, and a few other things, I would get double rewards on any purchase amount over the $650 in those categories. It was not $650 in one category alone, but that amount total from all the categories. I know I spent over that amount on those things in July and August, before I gave up and switched cards. The problem was like patsal said, my grocery store showed up online as "other" instead of groceries. They told me over the phone that it would count as grocery purchases, but the double rewards haven't shown up yet.