@derekbelyea Thanks for bringing this to our attention and thank you for your persistence. We are excited that you will be joining us at Inspire.
We had our event company investigate and it seems to be an isolated incident. You can be assured the payment was captured and the card was only charged once. The site has been tested on Chrome, IE, Edge, Mozilla, and Opera and we have not been able to replicate.
Please reach out if any further questions arise.
Tara McCoy