Originally Posted by
btonkid12345
I bought an Aeroflot marketed flight operated by Rossiya and put my SkyMiles number in there.
Credited to my account with zero miles. Don't expect to receive any miles on anything not operated by Aeroflot itself.
I've actually had that happened with "regular" SU flights too. Had to request mileage credit to be reinstated and it worked. So in your case it might be worth to check with Delta and still try to get these miles.