Welcome to the forum MamaTex!
A gem or gold confirmation button has been asked for in all of the S8 games I've played. For as long as I've been playing. It does not seem likely that we will ever get one. You can email support and ask for your gems back. In my experience, usually it does not happen. Synching errors are usually blamed, and they don't refund for that. Go slowly is the best advice I can give you.