This time, I decided to write a note to place at their door.
It is a Chinese household. I wrote the note in my broken Mandarin, roughly translating it to:
Hi! We live nearby, saw this cat. Cat eat rice only, not enough. If it is convenient, please feed it cat food. Blk 302 Angels Pet Shop sells it very cheap. We have also brought cat food and placed it outside your house. Thank you!
I know I sound like a nosy neighbour, but then, I can't bear to see the cat eating rice and ashes everyday and look so skinny, so small in size for his age. And whatever the hell happened to the Royal Canin we already delivered to their doorstep a few days ago?