You can cancel your subscription at any time. Just click on your username on the top right corner of your "My Powtoons" page then select "Account" and follow the wizard. Your future charges will be cancelled and you will be downgraded to the free account.
PowToon is an online service that is delivered instantly via web-browser using the login and password that you registered with.
If you cancel your premium/EDU subscription you will retain a FREE membership plan which is limited to the plan's restrictions and features. All your Powtoons and media will remain in your account.
Contact support by clicking the black pop up button to the right or email email@example.com