A departure listed as Call Us on the website is almost full and availability will need to be confirmed with our Travel Advisors. If you select a departure and then receive a message saying that the departure is On Request, this means availability is limited. You will still be able to complete your booking request but your place won't be confirmed immediately. General tour requests usually take 24 – 72 hours to get confirmation. It is highly likely that your place on an On Request tour will be confirmed. If you have selected additional hotel nights and the hotel is listed as On Request, the time to confirm this can vary. We aim to get requests answered in 24 – 72 hours. If your request is taking longer than expected please know we will contact you as soon as possible.