A subsidiary of Visa, a key Obama campaign donor, that specializes in credit card transactions has abruptly stopped servicing the nation’s largest gun store after four years because the store sells guns, a fact the owners never hid.

Hyatt Gun Shop of Charlotte, N.C., told Secrets that the subsidiary,, simply sent an email to owner Larry Hyatt to announce that it was suddenly breaking off the business relationship. The reason: “The sale of firearms or any similar product.”

The company email said that gun sales violated a section of the service agreement the two signed over four years ago and after Hyatt went into detail about its sales and products — and name.

“We’ve never seen anything like this,” said Justin Anderson, Hyatt’s marketing director. He said it took a week and thousands of dollars to line up a “gun friendly” credit card processor for online sales.