Here are the caps of the scene where Michelle and Jo lose their passport
I thought it was Delhi or Dubai airport but it can't be unless it was edited out, which I doubt Channel 7 would do because they're desperate
If someone could iD the airport it could help us a lot, but it could be very hard to nail down...
I've attached a photo of Delhi Airport departure hall which I THINK is the location. Then it would've been Episode 4 when they lost it