First, you can negotiate with the catering company and the school, and if that doesn't work, you can sue both.

Lawyer's letter (Lawyer's letter) refers to the lawyer accepts the client's commission on the relevant facts or legal issues for disclosure, evaluation, and then put forward the requirements to achieve a certain effect and the production and sending of professional legal documents. Lawyer with a lawyer's letter on a fact of legal evaluation and risk estimation, its purpose is to legal scale and lawyer's judgment, to serve the object of the legal facts, move to the advantages and disadvantages, so that the object of the legal evaluation of their own, that is, "pass the law to the meaning of "Lawyer's letter. Lawyer letter it is the essence of a proxy for the meaning of legal action, for litigants to maintain their legitimate rights and interests has an important role, but the lawyer letter is not really effective, specific but also the court's approval, if the court does not recognize, is invalid lawyer letter. Lawyer letter must have lawyer sign and seal, on behalf of the letter is legally responsible for, if not, is a forgery. If you are threatened, intimidated, loss, etc., you can report to the public security organs to the police, to pursue the client as well as the lawyer's responsibility.