Life sucks so take it as a loss
Well...I know for sure that if this event would had been organized by Regal, they would had issue a refund or give you a refund with the proper excuse from your part. Considering this was a competitor official event in this case AMC, I suggest you should contact them to see if they can assist you with this refund. We all are humans and make mistakes and multiple times corporations like these ones help each other with faithful customers like you...very good with this, sincerely!!!
Email them. This isn't there corporate account nor anywhere near an official page of theirs.
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