If you signed up on the Google Play Store, you will need to follow the instructions in order to leave Sidekick. Please not, by Uninstalling the app you will not leave Sidekick.
On your Android phone or tablet, open the Google Play Store .
Check if you’re signed in to the correct Google Account.
Tap Menu Subscriptions.
Select the subscription you want to cancel.
Tap Cancel subscription.
Follow the instructions.
Once you have done this you can obtain a refund doing the following:
Want a refund?
First, open the Google Play Store on your Android phone or tablet and navigate to the app or game you purchased. As long as you're still in that two-hour window, you'll see a “Refund” button. Tap it. A message will ask if you're sure that you want to refund the purchase and uninstall the app. You'll get a message that says "Thank you for sharing your concerns." You'll then get an email with your refund decision. You’ll usually get this within 15 minutes but it can take up to 4 business days.