If you wish to update your account information, such as email address, postal address or password then you should Sign In to your Xara account from in the Xara Service Center. If you are unsure of your password you will find a password reminder hint service on that page.
If you purchased from Xara within the last few years you should see one of these two options: Edit Personal Details or User Data. Click on this option to update your details.
If you have an old XaraClub account (that is you own Xara3D5 or older, Xara X or older, Webstyle 3 or older, Menu Maker 1.0 or fonts purchased before Jan 06) then you should sign in on the XaraClub home page and select the option 'Change your details'