I am not sure what happen too. Your last best hope is probably 10/10 shop (at basement, specialized in LiNing) at Bras Basah Complex. I have so far bought 2 pairs of kids badminton shoes (US 4.5) from there. The last purchase was about 5-6 months ago and I remembered there were smaller sizes kids shoes. By the way, I was in Chris's shop ~2 months ago and I saw the same pair of LiNing kids badminton shoes I bought in 10/10. Good luck!