You can easily move your domain to another Alantron user online. Please follow these steps:
1- Go to Change Domain Owner page or "https://www.alantron.com/english/account-administration/change_owner.do"
2- Enter the username of new domain owner and complete the step.
3- Both the current and new domain owner will receive an email from Alantron. Click the link inside the mail and complete the transition.