This was a scammer who posed as a customer for my business. The way this scam works is, they want a large amount of work done, want to pay by credit card, and want to ship everything using their own carrier. The way the scam works is, they say the carrier can't process credit cards so you charge extra to pay the shipping company. Of course the cards are stolen and this scam ends up costing business owners money. It's easy to tell if it's a scam because it's usually a large order for something and they won't answer specific questions about the job, they just want you to process a credit card right away. Even more obvious if they want to know if you process credit cards manually or not. I responded by sending this guy a text message every minute for 4 hours.