Where you can change your user/access data depends on the version of the app you use or your studio provides you.
For some versions, you can easily edit your email address in your profile in the app. To do so, please click on Edit Profile and change the data accordingly.
If the above described variant is not directly possible for you in the app, then please log in on our website and change your data there accordingly.
Please do not forget to inform your local studio about your new data.