If you want a refund for SuperGrok, first make sure Apple actually charged you...

https://www.beacon-bookmarks.win/to-cancel-grok-correctly-use-the-same-billing-channel-where-you-signed-up

If you want a refund for SuperGrok, first make sure Apple actually charged you by checking your payment info. Then, look at your iOS Subscriptions to confirm the purchase. Remember, just canceling the subscription won’t get you money back