is the service content stated in the contract? If so, you have to collect evidence that the other party has not completed the service content. If not, can the recorded content prove that it is related to the contract signing party? In short, it is very easy to ask for compensation through judicial procedures, but whether you can win the lawsuit and get compensation, you'd better find a local lawyer to explain the situation and consult to see how high the chances of winning are and whether it is worth the lawsuit.