Hey @Webgility_Inc,
Happy to dig in to this with you. Can you confirm how the return was created? If you’re using POS, there may not be a record of the disposition for the non-restocked items. (context on that in this thread here: Return location for items not returned to stock using GraphQL API - #9 by KyleG-Shopify
If it was created through other methods, reverse fulfillment orders should have the information you need: