Did you get a 2x EXP and Drop Card?

It did say from "MapleGM" but the description was still the same. Mine disappeared after 4 hours. If other people's are lasting longer, I'd like to know how, because mine are indeed gone. I'm extremely grateful for the 2x cards, don't get me wrong, but false advertising is a huge peeve of mine. I heard from someone in my BL that people on his BL still had their cards after 4 hours. I'd really like to know what's going on. o_O

I've been on for over 4 hours now, and mine are still going. Did you get any screen shots of yours? Mine say they expire at 10 AM tomorrow.