I visited a business that was listed as accepting the gift card but they wouldn't take it. What can I do?

Troubleshooting if a business cannot accept the gift card

Please contact us at support@mi-cnx.com if you have recently visited a business but they were unable to process or accept the gift card. Please provide the date and time of day you visited the business and any other information about the conversation you had with the business, so we may follow up.