Originally Posted by
OccasionalFlyerPerson
Oh dear, my phone is not working in Indonesia and hence I won't receive SMS messages. I hope the authentication by email works.
If you've booked directly with the airline it's 50:50 it will work. If you've used an OTA it's very possible Saudia has the agency number and e-mail address as the primary contacts: which means you receive no authentication details.
Good luck!