Originally Posted by
nth_utsera_sth_utsera
That's what got you access to the TG F lounge.
Flying in on TG F and connecting to another TG flight in Y/C will also usually result in F lounge access- although not relevant to the OPs situation in this thread.
OP will have access to all TG C lounges, that includes concourse C,D,E as well as the SQ lounge, just won't be able to partake in the free 30 min massage given to TG pax ex-BKK in C.
I also prefer the SQ lounge (in A concourse - better wifi and better food options and the coconuts clinch it for me) then head go to the TG lounge in C concourse for a shower.
But, as I realize the date of the post and the wording, this trip might have already been taken