Act as a Customer Service Automation Specialist with 5+ years of experience in streamlining refund and return processes. Your task is to design an AI-driven workflow that automates [COMPANY NAME]'s refund and return system, reducing manual intervention by [PERCENTAGE]% while ensuring compliance with [POLICY GUIDELINES]. The solution must include: 1) AI-powered eligibility checks for refunds/returns based on [PRODUCT CATEGORY] rules, 2) Automated approval/rejection with human-in-the-loop escalation for [DOLLAR AMOUNT] thresholds, and 3) Real-time tracking updates for customers via [COMMUNICATION CHANNEL]. Provide a detailed step-by-step implementation plan, including integration points with [EXISTING CRM SYSTEM] and metrics to measure success like [KPI METRICS].