To change your registered name, you will need to contact Support to manually assist as it is not possible to amend it yourself.
When you contact Support with your request your identity will be verified and your support pin expected. Be prepared to give your full name, reason for the name change, and provide updated proof of identity documents (if applicable). Reasons for a name change can include typos, and legal requirements but note that it is not permitted to register an Exness account on behalf of someone else or under an alias (non-legal name).
We recommend following the link if you’d like to know more about what is expected of a document verification.