Yeah, I signed up in January and haven't received a card yet. I did receive an email saying that there was an issue with the cards and that they would be sending them out in March, but it's April now. I think I also saw that they were extending the membership for a couple months to compensate which I'm totally cool with.
That is odd. I registered (1st time) on March 20th and I got my card on Monday the 30th.