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I granted a wish and then entered my wish.
I'd meant to wish for a 500 Credit Gift Card but I mistyped and wished for a 5000 Credit Gift Card! I absolutely know that no one will be granting my wish... is there a way to fix my mistake?
So far, I don't see an "undo" button, sorry! Tomorrow, it will be reset, so if nothing can be done, at least you've only lost 1 day!
After about two hours, you should get an option to cancel!