To cancel your Alayna AI bundle subscription (from the teaching assistant) please follow the following steps.
Step 1 - On the Teaching Assistant home screen, click on your profile in the bottom left corner of the screen and then select "Plan & Billing"
Step 2 - Click on "View Billing Portal"
Step 3 - From the billing portal, click on "cancel your subscription"
Your subscription will be cancelled and you will not be charged again.