So I read last night or so in a credit card blog post that if you called the number on the back of the card, this promotion was available for existing customers as well. Is this true? I just called CS right now and was told that it was only for new customers and was suggested to open up a new card in order to get the promotion. What would I want with two Discover cards? 
Would be nice if it was though, of course.
Older post, but just wanted to say I just received an email telling me they matched my cash back!
That is 315.00 free 