A follow up from my status match, which was completely successful.  As I had three flights booked in J, I have now accrued 38,500SCs..  That means TK and Star Alliance Gold for two years.  There are also enough points for a one-way award flight in Y from MEL to SIN.  Of course I would have to get to MEL first and then home to PER!  Points expire 31/12/2025.  Maybe an Amazon gift card?
Actually, I’m not sure that I will be flying Star Alliance again in the next 18 months, but the process was interesting.  I would definitely fly TK again between Singapore and Europe, especially at half the price of OneWorld carriers!