Matched Qatar Gold to Krisflyer Gold after 1) Request submission 2) Flying Premium Economy Return on SQ (may not be required?) Steps: 1) Fill in form at https://www.singaporeair.com/get-help/PPSClub-KrisFlyer 2) sq_reservations@singaporeair.com.sg replies to ask for: - Completion of another form (asks about your past and upcoming travel plans, etc.) - Past 12 Months Qatar Flight statement - Copy of Qatar Airways Privilege Club Gold membership card 3) Not stated as a requirement in email, but I flew a Premium Economy Mid-Haul return at a time between application submission and approval. KF Gold was approved right after I completed the PE flight, so I am not sure if it's the processing days being 16 days, or they just had to have me complete the PE before they approve.