Bangkok Airways’ 8 June 2026 Samui FAQ is explicit: complimentary Blue Ribbon at USM is reserved for Business Class passengers and eligible members or cardholders; Economy Class gets complimentary light refreshments at the Courtesy Corner. Official lounge URLs exist for Samui domestic and international Courtesy Corner. BA’s general Boutique Lounge directory lists Suvarnabhumi, Chiang Mai, Phuket, and Don Mueang — not Samui — so this row is the Economy courtesy product, not a relocated Boutique room from another airport. Do not present a Priority Pass, LoungeKey, or DragonPass card here. Economy passengers can still buy the published THB 950 e-upgrade into Blue Ribbon when that desk is open.