I don’t know if this is relevant to the thread if not please remove it

I bought a flight through Aegean site from Oslo to Athens via Copenhagen in business
they credit the miles for CPH to ATH (Aegean metal) but not OSL to CPH (SAS metal)
so when I called them they told me that I will have to claim them
isn’t that a bit strange? I mean they sold this flight under the same PNR from their site and I was logged in with my MB number
anyone have same experience?