Alright then 
I'll add to the discourse casual and you can tell me if I'm being unreasonable in being dissatisfied.
She informed me in the first term of last year that he belonged in a special school as he seemed totally bewildered by what was happening around him, not joining in, not following instructions etc. We had a meeting with the teachers in which we pointed out he was being schooled in his third language, we had just moved to the area and it was decided to give him time to settle in. We have been told to stop speaking to him in our native languages
At some point she called me in to tell me I needed to teach him not to lie. (at this point he never had lied to us). Her reasoning being he went to tell her another child had hurt him. She asked the child if he had. Child said no. Ergo my son was a liar.
One afternoon he didn't want to go back to school (comes home for lunch) because Mrs F had hurt him. I took him in and asked for a word, asked if anything had happened that morning and explained. She said no, launched into telling him off for lying and said that she hadn't had any contact with him that morning as she'd had a TA and DS had been exclusively with TA. Then she remembered that she had grabbed him on the arm as he'd tried to walk behind her chair and pulled him round to go in front of her. I explained to DS that she hadn't meant to hurt him, she interrupted and said that she hadn't hurt him. Let it go as DS is sensitive to touch, especially if he's not expecting it.
They're allowed to take something in once a week for show and tell. He usually refused, but one week decided to take his favourite book in. There wasn't time for him to show it, but he was allowed to show it to another child. Child wasn't interested, but DS was upset he hadn't been allowed to show it to the class. Went in for a word and her only response was, "but he knows something about it, he was trying to explain it to us 
". Her tone was complete shock as if she'd just written him off as an idiot. She said it was clear he was hiding stuff and he should go to the school services for an assessment.
Following this any conversation followed along the lines of me asking if all had gone ok. Her saying "yes, today was fine. Does he have a diagnosis yet?"
Continued until the a few weeks before the Christmas holidays where I found out he wasn't getting the rewards the rest of the class was (because "there's no point giving him them as he does the same activity over and over again"); that she was repeatedly asking him questions in front of the rest of the class, ignoring his (correct) response and repeating the questions as if speaking to an idiot until all the rest of the children fell about laughing; teaching the children to pull their eyes into slits when singing chinese songs; led him to believe he wouldn't be getting any presents from Santa (then denying she had said anything to him); telling the children that some people are different and don't like having their cheeks pinched so they are not to do it to DS; wanting to isolate him from the rest of the class for activities; arranging field trips when she knows he won't be there (three times, imo is no coincidence); not letting him join in the gym class for the first year (dyspraxia); instead of insisting he joins in with activities, she lets him play in the corner if he says he doesn't want to do to so basically he is now ridiculously behind; comparing his work to the others and when I ask what she is going to help him says its not her job to do that, it is just as it is; suggesting he does reduced hours this year so that the other children can see he is different and will stop asking her why he can't do things as well as they can. I only found out before Christmas by chance, she never told me he wasn't keeping up, I was led to believe all was well, she was waiting for the parents evening in February. Which is when I found out that she had never asked him if he understood what he had to do because she gives her instructions once and the children are expected to listen. Now we've no idea if its an language issue, unwilling to do it as he has difficulty/doesn't want to be laughed at if he doesn't do as well as the others, processing issue or stubborn refusal. I have to teach him to toughen up and to tell him to stop going to her if he is upset/hurt and telling her what has happened. So now he comes home with nail imprints/bite marks/injuries from being pushed over and refuses to say what has happened.
My child has gone from a happy friendly child to one who whispers answers to me if I ask him a question, for fear of getting it wrong and being laughed at and to hurting himself so he doesn't have to go in in the mornings. Thankfully he now has a 1:1 four hours a week and is catching up.
So yes, I resent being asked for money for her "doing her job".