The FTC might not investigate into this case unless there is a single (or total) of over $5,000 in damages done to consumers. However, your effort was not useless as now they have a file on them.

Why can't you do a charge back through your Credit Company? Its the fastest way to go and most reliable. Plus, it hurts hosting company's file so that they might terminate service to the company if they have too much charge-back orders.

Best,