You didn't give your child breakfast?
Honestly as a CM I have found that children can be very picky when it comes to eating my food.
You have got to think that there are so many different varieties of each food e.g bread/ butter/ sausages etc children are used to what they eat at home and some turn their nose up a different variety of something or a different way of cooking a dish like spag Bol.
I looked after two brothers whose father fed them junk and they would not eat veggies or eat the pasta I cooked loaded with veg.
I ended up throwing most of their meals away and in the end just provided stuff I knew they'd eat.
And I made the decision to only provide a light tea when I realised how much stuff I threw away each day.
Some children might not eat because it is a strange setting. My eldest did not eat a snack at his school nursery the entire time he was there. Goodness knows why as he loves fruit. Might have had a funny tasting apple on the first day and would try again.
One of my mindees has not been eating a lot due to the weather and I have discussed this with her grown up on collection so that they know. I do hope her parents do t think I'm trying to save money!
If you were so concerned you should have sent a pack up or a meal ti warm up for your child. Personally I'd have flagged it up and had a discussion about the situation.
However, I also know as a CM these issues sometimes only surface when parents are made to pay what they owe and then they grasp at straws and criticise the service that they were more than happy to pay for before.