My account
In the "My Account" section of the app you can amend your name, email address, phone number, change your password as well as amend your payment method.
How to access "My Account"
Click more on the bottom right of the app and then scroll to the bottom. You will then see the section "My Account".
Once you have clicked on this you can amend any of your details, simply by pressing the arrow on the far right of the labels. See below:
You can also change payment method. When you click through on "Payment Method". You can then click to amend how you pay. See the screens below
Below you can decide which payment method you would like to use.
More information on payment methods and changing/updating this during your subscription period can be found from the Payments article.