Unfortunately, it's not possible to change a Domain at all because a Domain is a custom made product that is created according to personal needs.
Also, it is not possible to change the Domain if there is a typo or if it is misspelled. Therefore we recommend to make sure that your Domain is correct during the order process. You have the option to change the Domain until the last step in the shopping cart.
If you've accidentally registered a wrong domain, you can cancel it anytime in your control panel and register a new domain instead.