If you want a refund for SuperGrok, first double-check who billed your...

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

If you want a refund for SuperGrok, first double-check who billed your account—Apple or a third party. Look in your iOS Subscriptions to confirm. Remember, canceling the subscription doesn’t automatically give you a refund