I did some research but the answer is unclear.

My ticket is IAH-IST-KUL RT on W ("promotional economy").

My understanding is W sometimes earns on M&S. It doesn't earn on any other *A program. Let me know if I'm wrong.

So I'm trying to find out if I will earn on this ticket.

The fare rules (when entering CC info on TK website) say nothing about mile accrual.

ITA Matrix doesn't find the itinerary.

Any suggestions?