If six hours have passed and you still have not received your activation e-mail for the RPG, you can now manually activate the account by visiting the URL:
http://tppcrpg.net/activate.php?v=Manual&id=NumberHere
For example, if you need to activate account
8675309, you would use the URL:
http://tppcrpg.net/activate.php?v=Manual&id=8675309
Remember, this link will only work after six hours have passed, but it should solve the issue of user's not receiving their activation e-mails.