Returns and exchanges flowchart template

flowchart TD
    A[Customer requests a return or exchange] --> B[Support reviews the request]
    B --> C{Within policy}
    C -->|No| D[Explain the reason and close]
    C -->|Yes| E[Send return label]
    E --> F[Customer ships the item back]
    F --> G[Warehouse receives and inspects]
    G --> H{Item matches the request}
    H -->|No| I[Contact customer to resolve]
    H -->|Yes| J{Refund or exchange}
    J -->|Refund| K[Refund to original payment method]
    J -->|Exchange| L[Ship replacement]
    K --> M[Notify customer and close the ticket]
    L --> M
    I --> M

Draw a returns and exchanges flowchart with Mermaid flowchart TD syntax. The customer requests a return or exchange and support reviews it. If it is outside policy, explain the reason and close. If within policy, send a return label, the customer ships the item back, and the warehouse receives and inspects it. If the item does not match the request, contact the customer to resolve; if it matches, either refund to the original payment method or ship a replacement. All paths end with notifying the customer and closing the ticket. Use diamonds for decisions and no parentheses in node text. Output only the mermaid code block.