1. Log in to official website or App for chalk baking; Enter the "Order Management" or "My Orders" page to find the order that needs a refund;
2. Click "Apply for Refund" or "Contact Customer Service", fill in the refund application information and submit it; Provide relevant certification materials and bank account information according to the instructions and requirements of customer service personnel;
3. Wait for the platform or the third-party payment institution to pass the examination and return the corresponding money.