1. Collect basic materials such as education and training contracts (if any), payment vouchers (if any), receipts, invoices and chat records with sales WeChat /QQ to prove the fact that education and training contracts actually exist and educational institutions do charge fees;

2. Summarize the reasons, analyze the advantages and disadvantages, consciously and emphatically collect the evidence materials of the reasons for the refund, roughly estimate the amount to be refunded (the percentage of class attendance+liquidated damages accounting for 30% of the total+physical teaching materials fees), and legally and reasonably safeguard rights.