I booked several tours with Viator and with this evenings interaction will not do any tours with them EVER. I had booked a tour that I was really looking forward to, and had some questions for the tour operator. I messaged them 17 days ago. Crickets. Messaged again, and again, and one last time. Still Nothing. At that point, after quite a bit of searching, I found a phone number that I could call. I presented this issue to the customer service rep, who proceeded to get quite snippy. Whey they start doing the "ma'am" thing, you know its going south. She made it sound like I was demanding contact (well I kinda was since it had been 17 days), but that I was being quite unreasonable. All I could finally say was "wow." I cannot believe the animosity from this woman just for questioning whether this tour operator was "legit" and if they vetted them. When I called, I just wanted help contacting this operator. Now? I'm just angry. Never ever do business with Viator if this is the kind of "service" they provide. BAD NEWS. No stars would be a better option.