8 Keys to Successfully Handling Complaint CallsBy Jerry Schappert / July 30, 2019 Course Information Categories: Sessions With The Expert Tags: Best Seller Course Instructor Jerry Schappert Author Individual Course Purchase $9.95 8 Keys to Successfully Handling Complaint Calls 8 Keys to Successfully Handling Complaint Calls Lesson 1 of 1 within section 8 Keys to Successfully Handling Complaint Calls.