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

https://garrettwigp625.tearosediner.net/my-subscription-page-doesn-t-show-canceled-date-did-it-actually-cancel

If you want a refund for SuperGrok, first make sure Apple actually billed you by checking your purchase history. Look at your iOS Subscriptions to confirm. Remember, canceling the subscription doesn’t automatically give a refund