Kindly download the Small Case in your mobile phone.

https://play.google.com/store/apps/details?id=com.smallcase.android

1. On the smallcase App, tap the Profile icon on the top-right corner

2. Tap 'Subscriptions'

3. You will see your subscriptions here

4. You will see 3 dots to manage your subscription

5. Tap 'Cancel Subscription'