Sq
Speedy...
As it was stated before,by several posters, it's not SQ that is responsible for the licence conversion, it's the CAAS. SQ submits your enquiry, (via your application, you filled it out yourself) to the CAAS and if the answer back is in the affirmative, they will go ahead with your processes. If the CAAS determines your licence can only be converted to a CPL, that's the end of it. The advice you were given sounds sage, think it over, it's not the airlines fault, and this Capt was trying to actually help you.
Gong Hei Fat Choi!