Do not use this company!!! I booked a private car from Heathrow to my hotel through Viator. HUGE mistake! I waited for over 3 hours in the airport, most of that time with a representative from the car company, only to be put on a shuttle bus in another terminal (long walk!). The car company was unable to get me a driver that whole time, while I watched scores of people getting picked up by Uber drivers. The car company now claims I was a no show, and Viator refuses to refund me any of the money I spent for a private car. I have given them the name of the rep who stood with me, and asked numerous times for my claim to be escalated. They refuse to refund anything, and take absolutely no responsibility for anything. They are not trustworthy.