I just flew back from Tallinn, Estonia: TLL-AMS-MSP-ORD The TLL-AMS segment was flown on Estonian Air, but with a KL codeshare flight number, and this was all booked on Delta.com. I requested mileage credit, but it is saying: Digging through Delta.com, I do see this memo under KL earning: Other: Only applies to KLM, PrivatAir, City Hopper flights, and KL coded SkyTeam partners However, IMHO the key is that I booked this on delta.com. Shouldn't everything booked through Delta earn miles? My other segments for the itin (including outbound ORD-AMS-HEL) total 9734 MQM's credited. When I booked the flight, I printed out the page from delta.com which showed MQM's earned 10651. The difference, 917, equals the TLL-AMS segment, so Delta did tell me in advance that I would earn miles. What route should I take to claim my miles, should I just write back with a scan of the printout?