Originally Posted by
Lobachevsky
Tell me what rule was broken, please.
The fact that Discover says certain purchases don't earn rewards doesn't mean that you're breaking any rules by buying them. It's not our fault that Discover (and other CC issuers) don't follow their OWN rules and pay rewards when we buy prepaid cards.
Surprise!!
They are following their rules. It says that you don't get cash back for certain purchases, including gift cards.
What they see is someone abusing their card for cash back that they (Discover) shouldn't;t pay and you don't deserve.
So, congratulations on getting 3 years equivalent of cash back before they closed you down.
But don't be shocked that they did so.
As I said, you are not their customer of choice.