You cannot change or update the email address you initially used to register your account. We use the email address as the account identifier.
If you no longer use that email address for your personal use, you can continue to log in with it, as it is registered as your username. If you would like to change it, we suggest the following;
1. download all the creations you have created to your computer and then set up a new account with another address.
2. keep the original as a free account and set up a new one to create further creations.
To delete an account send support a request, and we will delete the account for you.