Originally Posted by
mtensioners
It isnt there because it is illegal in some SA countries to add YQs or other additional charges to a ticket.
It is illegal ex-Brazil among others, but you can have YQ on tickets to Brazil that are sold elsewhere. Some of the European carriers have YQ on their fares ex-Europe to Brazil as an example. However, many of the US carriers don't have it for whatever reason.
Also to the original post, is the DL fare an unlimited connection MPM fare? Could get interesting due to the late departure times of flights down to South America if you really want to beat up the 500-mile minimum rule...