I would think that if you told Capital One (or any card issuer) that you did not approve the charge, it would be refunded immediately. If CapOne doesn't do that, get a new credit card.

I'd file an actual complaint with the BBB and let them know they're using their logo.

I just made a dummy booking with Farebooth with a made-up credit card number. I think the confirmation code they give is their own internal one. I tried typing it in to united.com and it actually found the reservation but with a different United PNR.

I imagine FareBooth will cancel the ticket when the credit card declines.