The Mopeng Payment Customer service System supports multi-level and multi-role functions. The system modules that support callback are as follows: 1. Development and configuration module (connect to system merchant numbers, keys, interface documents, etc.) 2. Order list (search, export) 3. Operation statistics (today, yesterday) 4. Subordinate service providers (Open subordinate accounts, enable order receiving function, disable order receiving function) 5 Lower order list 6: Team running volume Statistics 7: Application for Recharge 8: Balance Details 9: Tourist Chat Interface (supports text, emojis, and pictures) 10: Online customer service Interface (The dialogue list is based on orders, supports text, emojis, and picture sending, enables service, deletes dialogues, pays orders, and logs out)