Credit card companies to track gun store purchases

Guy talks about how the Credit card industry has not been particularly friendly to gun retailors. Guy has been working with the Indiana Legislature to pass a bill to forbid credit card companies from discriminating against gun related businesses. A panel of the International Organization for Standardization voted to approve the creation of a “merchant category code” (MCC) for gun retailers, and the credit card companies are adopting the change. CC companies are assigning codes to gun related transactions to flag and report. The question is report to whom?
https://omny.fm/shows/the-gun-guy/credit-card-companies-to-track-gun-store-purchases