shopgoodwill.com goodwill industries Goodwill industries needs to be investigated for fraud on their "shopgoodwill.com" on-line auction! Obvious Shill Bidding going on Internet

Does anyone know how to report a non-profit company such as the Goodwill Industries for investigation on their on-line auction "shopgoodwill.com"? I'm convinced that they have shill bidding going on here, driving up the prices. I see a lot of the same user names bidding up the prices to a usual amount, and they never win. The same user id's every time. This website is a scam, and I think it needs to be investigated. All you need to shop here is an email address. Shill bidders can have multiple email accounts and bid up the various items. I'd like to find out if the employees earn a comission on what they list and sell. I know all of the Goodwills are run independently and each has their own policies.