Yeah, I just got it to work; I just returned from my local GS. I gave him the printout and told him I had planned to hold on to the games but then I got that email (ok, ok, that's a lie, I just snagged the printout from here). He didn't really seem to have a problem at all putting it in the computer. His fellow associate had to help him somewhat, but I don't think they had to do anything manually. It stacked with Edge card too. On my receipt it shows separate promo numbers for each game, 3232, 3231, and 3239 for Zelda, SPM, and RE4 respectively. Here's the breakdown:
Base / Bonus / Edge Bonus = Total:
Zelda: TP - $25 / $10 / $2.50 = $37.50
Super Paper Mario - $25 / $10 / $2.50 = $37.50
Resident Evil 4: Wii Ed. - $18 / $2.00 / $1.80 = $21.80
So I got $96.80 in credit altogether; not too shabby.