Your registration may fail
After waiting for a month, I notice the 2x and 3x did not post in my account. The platinum CSO informed me that I had not registered for the promotion after I send in an email to inquire about it.
This is upsetting. I have missed about 4,000 points from Starwood system. I recall very well that I had registered for the promotion, but did not receive an email confirmation. Repeated registration came up with the message that I had registered for the promotion. I let the matter rest thinking that I had properly registered. But I have no way to prove registration was done without the confirmation email and now I am paying for missing the bonus points.
I recall another member had this issue before in another thread. Looks like Starwood system has some intermittent issues and if you are not diligent to ensure it is properly registered, you will miss the promotion.