I fell for this scam trying to quickly book a room on my mobile phone for one night thinking I was booking it on the hotel's website. Price advertised was ?73 then confirmation showed ?110.17. I didn't receive a confirmation email, nothing in Spam folder either. Rang the hotel and at least they had received a booking for me and a fee for ?71. I note from GR's responses on here that they claim "We also require every customer to acknowledge that Guest Reservations is an independent travel network before finalising their reservation". THIS IS SIMPLY UNTRUE, they do no such thing.AVOID!