Can I change my characters name?
You can not change the names of the character once created.
To change names, you will need to delete the character and recreate it."
My characters level will not go up, and can not receive EXP.
There is an system called a level cap that is setted up in characters levels. If the character reaches the setted up level , further on the character will not be able to receive EXP that will have effect as the received EXP. For freeing the level caps, please check for updates and information.