I started trying this early in the morning (I'm in Aus). I was able to use openvpn to get the reward to pop up, however when going through the claim process on Xbox.com, I couldn't get past the payment part. It just wouldn't accept my Paypal account, which is strange, considering I have it linked to my other US account. I gave up on it for a while, then found this thread. Tried the switching account thing, no signs of it working.
It has been a few hours, it's still possible I guess that they would eventually show up, but I am doubtful. Oh well, I'll check it again when I wake up.