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.
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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!