I booked a room through Trivago promising room, breakfast, free valet parking. Next thing I knew, a company I never heard of called 'Canelon' had withdrawn $886 from my bank account; they represented they were working for Trivago. When I got to the hotel room, my 'special rate' was no where. In fact, the hotel doesn't work with either Trivago or Cancelon, no monies had been paid on my behalf. I was then charged the full stay (+$32/night valet) on my card. I have now paid twice and never received a refund (or acknowledgement of wrong) from either Trivago or Cancelon.