Originally Posted by
SQTraveller
From what I can remember these have now been stopped. You need to have a premium (first/business) ticket to be able to get access.
Some suggest they check the Fast Track Pass and the boarding pass when you are trying to access the FastTrack channel.
Bangkok Flight Services are doing as you say, however Bangkok Airport Limousine are still offering the full package.
https://www.limousine.in.th/fast-track-immigration.html