Join Date: May 2004
Location: SIN (LEJ once a year)
Programs: SQ, LH, BA, IHG Diamond AMB, HH Gold, SLH Indulged, Accor Gold, Hyatt Discoverist
Posts: 7,739
Definitely has been possible in the past though cost has varied. Of late some people reported that the rate difference between booked room category and Club room was demanded.
Could be a temporary rule for the time period when the Club wing 6xxx will undergo refurbishment or a new rule by the current management team. You can always ask for a supervisor or manager to revert and explain.