It may also include 8.5.5 Post-delivery activities ("Post-delivery activities can include actions under warranty provisions, contractual obligations such
as maintenance services, and supplementary services such as recycling or final disposal.")
Also, be sure to distinguish between complaints vs. requests for repair/replace. Usually, you wouldn't consider typical RMA activity as customer complaints (8.2.1), unless the customer is making a complaint as part of the RMA request.