I am sorry that you did not receive your double xp. Please go to the following site and submit a suppor ticket. If you update your post with your reference number, we will see if we can do something about resolving this issue for you.
Well, sure enough, I'm back. I got absolutly no help from Activisions useless customer support. They told me some bull about giving me an answer within 4-5 business days. That was over 3 weeks ago. They just closed the incident without giving me an answer. What's worse, I now can't seem to get in touch with their support team. Looks like they've redesigned their site making it impossible to ask any questions.
Here's the incident number: Incident: 120130-003195
Can you help, ELITE_Help?