Saigon access ?

[Gutsandglory]

Guys, a little help for a veteran - I'm intrigued by Saigon but my research doesn't give me precise door location. I know it is above the Penang Restaurant on 10th but hate to start pushing on random doors and walking in... PM if better.

 

[OldSteel]

Big sign above the gate, you won’t miss

 

[Phillyguru]

Look for glass door to your right of the entrance to Penang.
There is a poster that says the spa’s name

Walk up 1 flight of stairs then ring doorbell.