If you want a refund for SuperGrok, first confirm whether Apple or another...

https://www.kilobookmarks.win/to-cancel-grok-correctly-use-the-exact-billing-channel-you-subscribed

If you want a refund for SuperGrok, first confirm whether Apple or another service billed you by checking your purchase history. On your iPhone, look under Settings > Subscriptions to see if you’re still subscribed