Hi kat@ebay
Thanks for your reply.
From my experience though, the moment an 'item not received' dispute is opened you get a defect under your service metrics. This defect seems to stick there regardless of how the dispute is resolved or how quickly. If a case gets opened, its counted.
As a follow up to my original question, the buyer opening 9 disputes has indeed resulted in me getting 9 defects in my service metrics.. despite them all being closed within 10 minutes of him opening them. Great stuff. Cannot win sometimes.