I quit FB just because of all the really great offers and ads I would get from them but knew they were scam sites...and even after reporting them to FB, they didn't seem to care and just kept sending them to me (especially in Android games I would play on my phone). Items that cost hundreds or even thousands of dollars 'on sale' for 70%-90% off is the first red flag. Hopefully you got your CC co to reverse the charges but all too often, they send something...an envelope with a tracking number or some other cheap junk in a box so they can say you received the order. Refuse and return ANYTHING you might get from them unopened or you are doomed.