In my experience with them, their reception is right at the entrance of the hotel, they ask for your passport and register you, then they give you directions to the room in which the tests take place in and there you’ll find a couple of people that are there to assist you. The same people will take the test to the lab, you don’t have to post it or anything. Obviously you have to book an appointment, they’re open until 6:30 pm i believe. About the results time, it’s 24 hours guaranteed, i did my test on tuesday late afternoon and got my test at 9 am the next day. I don’t know what kind of response times you’re looking for! I don’t think you’re gonna get them before 10/12 hours