The duties and responsibilities of a Customer Service Representative (CSR) include.

Managing incoming calls and customer service inquiries
Generating sales leads
Identifying and assessing customer needs
Addressing and resolving customer inquiries and issues
Providing exceptional service and support
Maintaining customer satisfaction and promoting customer loyalty
Interacting with customers via phone, email, online chat, or in person
Resolving customer problems and complaints
Answering questions and providing price information
Handling inquiries about deliveries