Removals do not appear on the Disposition Management page until Amazon reports them as Completed.
If a removal order is still showing as Pending on the Removals & Disposals report, this means that Amazon is still reporting to us that the order is in Pending status. (This can sometimes still happen even though you've received the item back already.)
Once Amazon updates its reports to reflect that a removal order is complete, it will update to Completed status on the Removals & Disposals report and populate the Disposition Management page at that time.