I'm not sure BBB involvement is relevant for a data center. It's not an auto repair shop with thousands of customers per year. Searching the online court records would be a more appropriate resource.
This doesn't have anything to do with 900 numbers, it has to do with toll calls to rural telephone carriers. They are allowed to set arbitrary rates that AT&T and other LD carriers must/should pay. To entice calls they offer free conference call systems or other services that cause people in other areas to call these toll numbers.
Try it and see!