Singapore Airlines KrisFlyer - Problems to rebook a meal online

I've booked the "Book the Cook"-Sushi from HKG to SIN.
Now I'm not able to change the meal. After changing and saving it's all the same.
Can someone help please.
Thanks in advance

Call SQ. Since you're flying in FC or J/C, the call will be answered promptly.

I've booked the "Book the Cook"-Sushi from HKG to SIN.
Now I'm not able to change the meal. After changing and saving it's all the same.
Can someone help please.
Thanks in advance

Sushi on a plane?
Er, you might want to rethink that especially now in the height of summer ! :p