Originally Posted by Europeanexplorer

I don't think it is a Business Class fare. These are the fare rules:

"RULE APPLICATION AND OTHER CONDITIONS...
...NORMAL FARES FROM CAN TO BKK
APPLICATION
AREA
THESE FARES APPLY
FROM CAN
TO WITHIN SOUTH ASIAN SUBCONTINENT.
CLASS OF SERVICE
THESE FARES APPLY FOR ECONOMY CLASS SERVICE.
TYPES OF TRANSPORTATION
THIS RULE GOVERNS ROUND-TRIP FARES.
FARES GOVERNED BY THIS RULE CAN BE USED TO CREATE
ROUND-TRIP/CIRCLE-TRIP/TURNAROUND SINGLE OPEN-JAW
JOURNEYS...."

Looks like ITA mistakenly thinks the *D* fare class is in Business. EF has the same problem too.