Update: Only a few hours later, I received an email from "Booking.com", promising me almost 250 U.S. dollars as a 'reward just for you'. - Everything, logo, font, etc., looked like a genuine email from Booking.com. All I had to do to claim, was 'click on the link and fill in your full address'...
I never received such a fake Booking.com email before, so the coincidence is very strange! If so, then behind this "agency" (Road ... a.k.a. Teach .. .... - my research tells me they're based in Hat Yai) must be very sophisticated scammers, praying on job seekers. - How did I know the Booking.com email was fake? I clicked on 'Reply', and the email didn't add up...