We have a long time Vietnamese customer, extremely hardworking. She is a 'go to' person for our Vietnamese community. She does accounting and tax prep for multiple, multiple nail salons. She provides translation and notary services to her community. She runs a Laundromat. All that is fine. Where I am having a little heartburn is that as an additional service to her many clients, she will accept cash in payment for airline tickets, and charge the tickets to her American Express card. Often these are whole families flying internationally and it adds up. She told her account officer, who has known her for many years, that the only benefit she gets from this are the reward points. It's not a business per se. What are everyone's thoughts on monitoring this activity? We are trying to untangle everything she does and get business accounts established but the cash to American Express payments is kind of falling outside the box.