This quick step by step guide will show you how to cancel your Chrome App subscription for your classroom or school. Depending on your type of subscription you will need to follow different steps.
Single User Subscription
If you are subscribed to the Arduino Chrome App Extension for Chromebook and you wish to cancel your subscription for a single user you must do this on your Google Payments Center.
The Arduino app extension for single users is managed by Google Play Store and it should not be confused with the Chrome App Plan for Education (Schools, Classrooms and students).
Education Subscription Plan (Schools and Classrooms only)
Click this link and make sure you login with the same Arduino credentials you used to register the subscription. https://create.arduino.cc/plans/chrome-app
Then click on 'edit plan'
On the right hand side menu click on 'SUBSCRIPTION'
Click on 'DELETE PLAN' and 'DELETE' again in the pop up window.
NOTE: This action is irreversible, if you delete your plan all your billing details will be gone, and the users tied to the subscription will no longer have access