[quote name='Brak']It's good to know that you and I, individually, aren't the only ones... LIVE must be having some issues.
If anyone else is having trouble, please post.[/quote]
It wasn't from buying one of these deals, but I just had a problem with LIVE codes from Amazon not working too.
I received a 4000 MSP code from Amazon.com that was ordered for me from yourfree360games, and it did not work. My console said it was invalid, but the website was more specific, stating that it had already been used. I spent hours on the phone with Microsoft (who confirmed that someone else did redeem the code on that day, but couldn't help since I got it from Amazon), and Amazon, who couldn't help me because it wasn't my account that made the order.
If you purchased the points yourself, I think you should be able to call Amazon and get someone to help you.