If you want a refund for SuperGrok, first check who actually billed...

https://instaquoteapp.com/what-details-does-apple-support-ask-for-on-a-subscription-refund/

If you want a refund for SuperGrok, first check who actually billed you—sometimes it’s through Apple or directly from the developer. Look at your iOS Subscriptions to confirm. Remember, canceling doesn’t automatically give you a refund