How to change my email address?

You can change your email address by yourself.

From the application, go to [Menu] (3 small lines at the bottom on the right) > [My account] > "Account settings" icon [⚙️] > [My email address]. You will be able to change your email address.

Similarly from the website, once logged in, click on your username to access your account, then [My settings] > "Change your email address".