Some of the published O class fares for domestic South Africa have the following rules:

RU.RULE APPLICATION
FOR OSALE TYPE FARES
ONE WAY ECONOMY SPECIAL FARES WITHIN SOUTH AFRICA
APPLICATION
AREA
THESE FARES APPLY
WITHIN SOUTH AFRICA.
CLASS OF SERVICE
THESE FARES APPLY FOR ECONOMY CLASS SERVICE.
TYPES OF TRANSPORTATION
FARES GOVERNED BY THIS RULE CAN BE USED TO CREATE
ROUND-TRIP/CIRCLE-TRIP JOURNEYS.
CAPACITY LIMITATIONS
SEATS ARE LIMITED
OTHER CONDITIONS
THESE FARES ARE SUBJECT TO SEATS BEING AVAILABLE
ON BRITISH AIRWAYS DOMESTIC SERVICES.
EXECUTIVE CLUB AIR MILES CANNOT BE EARNED ON THIS
FARE TYPE

Has anyone flown one of these fares and had the flight post as normal to their BAEC account?