I think that you missed the last step of registration. Try registering again (you can use the same username and email) and after you click register you should see instructions to validate your account in SwC chat. There will be code that looks like:
#validate XXXXXX
You'll have to post that line in SwC lobby chat and you should receive confirmation mail soon after that. It's necessary step because otherwise someone else could register under your SwC username.
If there are any further problems just email support@sealsclubhouse.com - I check it more often than this thread.