Hi, I am interested in the 15-day China Tibet Impression Tour and have some questions which I hope you could answer: 1. in which country is this company based? 2. I am a single traveller. Is this a group tour? 3. Are there any additional costs for single occupancy rooms? If yes what is the amount? 4. In the eventuality I arrive to Shanghai 2 days before the start of the tour, would you be able to arrange the accommodation for me? What would be the total cost of the tour?5. Do i need to apply for china visa