The Digesto "My Account" section is your "self-service" portal to manage all your Account details. Here is an overview of the related sections:
First, in order to access "My Account," click on your username and then "My Account."
View your current plan. Click "Change Plan" to view other plans available.
Select your (new) Plan. You can toggle between monthly and yearly options.
Basic Account Details
Edit account name, email, password, etc.
Add, update, or edit your billing method and billing contact info.
To cancel your account, go to the Billing Information section (see above) and select "View More / Edit" button.
On this screen look for the Subscription section and select Cancel Subscription. Doing so will schedule the account deactivation at the date set for you next renewal. Your account will remain accessible until your next subscription anniversary.