TG F in BKK you get fast track, this is basically the diplomatic line with sometimes a staffed fast track desk behind a glass wall at the right of the 2 main immigration area's. TG C passengers would not be accompanied to this desk but were allowed to use until last year. Not anymore. I have not heard of any other airline premium passengers getting fast track in BKK.

Another story closer to home...
I London I arrived last week in CE from Copenhagen connecting to LCY Club World to NYC. I carry a European passport and am not allowed to use fast track because of that. it so happens the EU Queue was massive and fast track was completely empty.. still refused fast track as a BA Gold card holding Premium Passenger.

No thats something for BA to solve with BAA!!

Globalist