They came to my son's school to do some paperwork ...

They came to my son's school to do some paperwork for an assessment. Fee's were never discussed and they never asked for my insurance. Now they are sending a bill of $211. Spoke to the billing department and they lied to me when they said I had signed the agreement; I have all the paperwork I signed and none says I signed and agreed to fees because it was done through the school. The supervisor then said she dismissed the fees but 2 weeks later I receive the bill again. They are trying to get my insurance and I won't give it to them. I am speaking to a legal team about this matter and it was brought to the higher up of the school. I will never do business with them, they are scammers and shady.