I just got mine last monday (1/23). Did you book thru a TA? If you did, they get the papers first & then have to mail them to you. Makes it a few days longer.
There is a DME number you can call to see if they have you registered. I was nervous, so I called them. They told me they had my info, confirmed that it was all correct, & said it was out to the printers, so I knew they would be coming eventually. The number for DME is: 1-866-599-0951