School sent us an invoice for milk.

Nathan has been in 4k since September at a public school. They have snack time and all the kids have milk except for Nathan, I send juice for him.

A few days ago I got an invoice from the school stating we owe $8 for the milk for the school year. I am not paying for milk that my son isn't drinking and why would I pay for something that could kill my child? (That is what I wanted to say on the phone, when I called). I got their voice mail and I simply stated he was severely allergic to milk,  he hasn't drank the milk and he will not be drinking the milk. They never called me back. I am sure it was a mistake, they must assume all the kids get milk at snack time.