"Tingkat's stirfry chicken cube turned sour"

I ordered tingkat for the first time and ate at 7pm. Here's my review:
The good:
- rice portion is good
- menu for the week seems to have variety
- seasonal beans with carrot seems ok, except towards the bottom some of the beans have turned bad ... More and smell abit sour.
- Japanese curry pork is acceptable.
- caixin chicken soup is decent.

Here's the bad part:
- all the food has turned cold when we consumed them at 7pm. I would like to know what time they delivered the food?
- the stir fry chicken cube with potato looks very weird with foam on top and smells and tastes like it's gone bad, like very bad. See attached photos. Please tell me if this is normal? Also, I had mild diarrhea after just eating a few pieces of meat and throwing the rest of the dish away.
- there's nowhere in the website that I can indicate I want non-spicy food options.
- as the office is closed for the day when I called at 8pm, I guess I can only call in the next day with my feedback.
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