Shihan, Ran into a single bedbug in a hotel room that my wife and I rented.
We "Bugged Out" instantly and got a full refund after showing the critter (we caught it in an empty water bottle) to the manager. We moved to another hotel, bathed, took the dog to Petsmart and had it dipped and groomed, and when we got home, every piece of clothing got stripped off outside, washed and dried for 20 minutes. The luggage was left outside until we could vacuum every single piece of it. It was a gigantic headache, but with the help of a couple of Internet sites, we learned what to do not to transfer the little buggers home with us. It's been two and a half months and no signs, so we think we've avoided the terrible critters!
I do not envy your work, whatever it is!