Guild Wars 2

Hi!
How can i get new password from my ACC when i dont have my serial code? Is there any other way???

Services (top right of page) > Support > Submit a ticket (top right of Support page)

One of the questions they will ask when submitting a ticket is you Serial Code, but it is not a required field (leave it bank) and there should be no issues getting assistance as long as you answer enough of the other questions to verify you are the owner of the account.