I just called about the problem of wins showing up as "Try Again" in account history and unfortunately unlike the previous poster who called in I got someone who had never heard of this problem at all. So she took my info down, but said call back in like a week. Kinda sucks because if I hadn't heard of the problem I know I might not believe the person claiming to have this problem.
For the people asking about this problem..no I did no redeem right away, but I don't think it really is going to make much of a difference. First of all, when you redeem a code it redeems the latest win you've had that you haven't redeemed, it doesn't specifically try to redeem a specific win. Also if you go ahead and redeem after each win you may experience the problem. I think there is some glitch where if you win once, and keep replaying after that it keeps telling you that you won when you really weren't supposed to have won. If you take the time out to go redeem a song, the time delay may cause the glitch to not happen. This may or may not be the other way around as well because I know I both win and lose in batches. I lost 5 in a row, waited a little bit, then "won" about 15-20 in a row, lost 5-10, won 15-20, lost 5-10 then "won" exactly 20 in a row since I counted this time. Out of those last 20 I specifically know 8 of my "wins" show up as "Try Again" in my account history.
edit: now there are two previous posters that called, I'm referring to the one who posted after me on the previous page