For those of you who have only recently signed up for e-Rewards and who are hoping to take advantage of the 250/500 mile bonus signup promotion, here is how you can tell if the transfer happened/is happening:
In e-Rewards, click on "My Account", then "Review Account Statement". Change the dropdown on the far right from "All Types" to "Redemption", and click "Go". It should show whether a mileage redemption has been requested (either automatically as a result of a signup bonus or because you hit $25 in e-rewards currency and requested it).
It should show something like this:
Code:
As of Description Amount ID#
10/06/2011 500 US Airways Dividend Miles $0.00
If it shows, you're fine. If not, you may wish to be concerned. If the amount is listed as $0.00 it means the mileage transfer was the result of the signup bonus. If it shows $25.00 it's because you specifically requested a transfer.
Finally, just because it shows a date (in this case 10/06), that's almost certainly not the date that it will show up on your US account. In my case, the lag was about a week. So don't freak out if e-Rewards reports a pending/complete transfer and you don't see it in the "Your Miles" part of the US website.