As a reminder of the rules - one account per person only. This includes both users playing only in the demo and also users using the full game worlds. (the account rule is clearly stated at the registration page, in two different places of the page at least).
We've tightened the security & monitoring of double accounts during the last weeks. Please remember that since using two accounts is against the rules it will lead to ban of both of the accounts.
If there are multiple persons using the same internet connection or same location please inform us
first (or as soon as possible) to avoid any problems.