UPDATE: if you signed up for the FREE $2 Amazon MP3 Credit on Twitter from #PepsiMusicNOW go check your Direct Messages. I received my code for a FREE $1.29 credit a few hours ago!
Let me know if you got your code!
I am not sure if this promotion is still going or not (looks like it is), so if you haven’t gotten a free code yet it might be worth a try!