Un subscription From Remini Web Official:

• Open Google Play Store:
• Click on Your Profile Icon in the Upper Rightories.
• Go to Payment and Subscription
• Open the Payment and Subscription segment.
• Access Payment Methods.
• Now Tap on Payment Method.

More Payment Settings:

• Scroll down and click More Payment Settings. It will then refresh to the “Payment Centre.”
• Check Payment Activity.
• Then, Select the three lines in the left portion.
• Select ‘Activity’.
• Search for the payment done towards Remini app and tap on it.
• Check Payment Activity:
• Then, select the three lines at the top left.
• Select the “Activity” option.
• Search for the payment was done on Remini Pro APK and tapped it
• Contact Google LLC:
• Scroll down and hit “Contact Google LLC.”
• Browse help topics to describe your issue and tap “Refunds & Returns”
• Choose the “Problem With In-App Purchases” option.
• Request a Refund:
• Then scroll down and find the “Request a Refund” option.
• Tap “Returns and Refunds on Google Play” to request a refund.
• Sign up You also need to install this application on your Android device and then click the button Sign up, enter your email which is the same as the Gmail ID used for the subscription Click CONTINUE.
• Choose the purchase you would like to be reimbursed for and press continue
• Select the reason to return and tap continue.