"Sorry we have been experiencing irregular activity on our website that is preventing your unique code from being recognized. Red Bull is committed to ensuring that all customers who qualify for this offer receive their in game rewards. Please take the following simple steps to validate your code and we will be in contact shortly." That is what pops up. It has a link saying "contact us" I clicked it, filled out the information, submitted it, and haven't heard from redbull.
I'm pretty sure that means it's been redeemed.