Yeah, the GC worked ... but the discount didn't. I must have screwed something up. Either way, I'll be ok with whatever happens. I can chalk it up to a learning experience if I entered something incorrectly ... and to going too fast. 
I did put in a request to see if there is anything I can do, just in case.
Thanks Meghan! 
I did put in a request to see if there is anything I can do, just in case.