To manage/cancel your subscription, tap on the "Manage Subscription" button on the settings page of Kiddopia.

Alternately, you can Manage Subscriptions from the Settings menu of your Device as well. Please follow the steps below:

1. Open the "Settings" of your device
2. Scroll down and tap on "iTunes & App Store"
3. Tap on your "Apple Id"
4. Tap on "View Id"
5. Now scroll down a bit and tap on "Subscriptions"
6. Now tap on "Kiddopia"

From here you can manage/cancel your subscription

Refunds:

Unfortunately, we as developers of the app, do not have any control over the payment and refund process. 

To get a Refund, we request you to please contact the Apple support here: https://support.apple.com/contact