Step 1: Go to https://dashboard.stripe.com/payments and log in if needed.
Step 2: Search for the user by email or by the last 4 digits of the customer's credit card.
Step 3A.1: To cancel a subscription, scroll down and look for the Active Subscription section then click current subscription.
Step 3A.2 Click the Cancel Subscription button.
Step 3A.3 Confirm the cancellation by marking Immediately and tapping the "Cancel Subscription" button
Step 3A.4 Authenticate the cancellation process by entering your log in credentials and clicking "Authenticate" button
Step 3B: To process a refund on Stripe, Scroll down and look for the Payment Section. Tap the most recent payment.
Step 3B: Tap the "Refund" button and do the same authentication process in Step 3A.4
Step 4: Let the user know!