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

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

If you want a refund for SuperGrok, first make sure Apple actually billed you by checking your receipts or subscriptions on your iPhone. You can view and manage your iOS subscriptions under Settings > Your Name > Subscriptions