Ok, maybe that is a language thing?
I read in your last reply that Completed is sent when I change pending (or failed) to completed (or to processing, or to on hold)?
But under 2. You say from pending to complete = new order email in stead of completed email? I get confused…
I would have thought Completed would mean something like all paid for & done or something like that. So that would be the kind of email sent when order marked as Completed.