The small business I work for recently received a "bill" from these guys for a service we hadn't chosen from a company we had never had any prior contact with. Will report to AZ Attorney General and BBB when I get the chance. They may well provide a legitimate service, but they certainly go about selling it in a very illegitimate way -- posing as a vendor with an existing relationship with your business. Hopefully the Yelp reviews will warn others away.