Not a problem, but if you're receiving that message it just means the multi director hasn't had a chance to approve the account yet. Approving multis just takes a bit longer since they need to be manually added as multis, so only one person normally handles that, whereas other join requests may be handled by any of 5 or so people.
I have registered also. My big brother already plays this game, then my little brother got his e-mail (approving his account) and then i registered. its been about 30-35 hours since i have registered.
does it take longer because i am the third multi-account?
Please take a look at the appropriate sticky thread in this forum to understand how you can use the Lost Password feature to check on the status of your account, and open a new thread for your own problem rather than sidetracking someone else's.