Hello Onurkan. If you mean you sold an account, then the buyer changed the email and password, that is fine --- it's what the process should be. But if you're worried that your email on the game account was hacked, then there was a problem with the exchange. What you should have done is change the email address on the game account to the email address your buyer wants; this way, your email address will remain intact.

If you ever need help, please email support@playerauctions.zendesk.com - kindly include the order ID and your username, as well as details about your issue. Our team will help you out with it.