Avoid ticket desk mistakes, but huge praise for Maria Who helped to resolve the issue!

I arrived today with pre-booked online tickets and went to the desk just to buy a Fast Pass. The desk agent completely misunderstood, accidentally charged my card an extra €96 for two unneeded adult entry tickets, and then rigidly refused to cancel or refund the mistaken transaction. I was left stranded at the desk for 30–40 minutes in pure stress over a simple clerical error that she should have just voided and re-done.The ONLY reason my day wasn't completely ruined was a wonderful staff member named Maria, who was directing crowds at the entrance. I asked to speak to a manager and she tried to get the desk agent to fix it, and when that failed, she went completely above and beyond by helping me find other guests in the queue to buy the duplicate tickets so I didn't lose my €96. Tip for others: Double-check exactly what the desk staff are ringing up before tapping your card, as they will not reverse mistakes. Huge thanks to Maria for her incredible kindness and quick thinking!