Originally Posted by Thai-Kiwi
Search engine is done at the moment, so a quick query for you SQ regulars.
What is the hierarchy of SQ economy booking codes? From the *A thread they are listed as:
SQ Singapore
EC : S Y B M H W U E K G Q N V T X
Are these correct? Using KVS gives a hierarchy as follows:
HKG Hong Kong Int'l HK [VHHH] to SIN Singapore Changi SG [WSSS]
S Y E B M W Q N H V T L K
Behind my query is a problem I'm having with TG who assert that the W class fare I purchased on SQ (HKG-SIN return) is non-mileage accrual to ROP. The ROP website has changed after my purchase, and my SQ e-ticket states that the fare IS mileage accruable. Cheers.
TK
I'm not too sure of the fare hierarchy TK. But as you know, W is accruable on KF. I have heard that there is some problems crediting with MP with W. I know most carriers use W to denote pretty steeply discounted Y tickets, but in SQ's case, W though discounted, still earns 100% miles.
The issue here now, is not SQ, but rather ROP. I know this doesn't really help solve your problem.

Maybe someone more skilled will be able to help. Do report back on the outcome though.
Good luck!