Duplicate charge for 23 miles of Mexican Food.

Hello, I purchased a pair of tickets to 23 Miles of Mexican Food and attended the event. I had a lovely time btw.  When I arrived at the event to check in for my wristband and drink tickets, I informed the ladies at the table that my card had been charged twice.  One of the people took a screen shot of the email and gave me a business card, which I seem to have lost, but told me that the duplicate charge would be reversed.  I noticed today that the charge was still showing.   The name on my card is Launa Rabago, and the last 4 numbers are 5551.  Can someone please help or call me back?  My email is Launar@hotmail.com  Thanks so much!  Launa Rabago, Entertainment and Marketing Manager Pima County Fair April 20 - 30, 2023