How are you protecting your sales?
Because in today's world a deal is not a deal anymore, it's okay for them to order and pay for your product, use your product, tell you how much they enjoy using it and have up to 120 days to say this was not authorized and have the bank charge you back like it never happened. Yet there you are out of money, and get hit with penalty fees. If that isn't the most backward thing ever I don't know.