The support department let us know that they will investigate claims of character impersonation and scamming, and permanently ban the impersonator and any related accounts.
An example of this behavior would be a player creating a character using a similar name with the supreme general of a clan and using this tactic to gain access to the clan vault and take items out of it. In cases like this, the character will be banned and all actions and associations of this character will be investigated.
It's not possible to return items to their owners yet, so we urge clans to be very careful of impersonating characters.