Has anyone had issues with booking flights with a partnered airline while using your preferred airline frequent flyer number, only to have the miles flown on the partnered airline not show up on your preferred airline frequent flyer mileage account? This has happened to me. When using ff numbers with an airline partner, the airline makes me wait longer to submit a missing mileage request. Then once I submitted the request, it seemed to have gone into a black hole. Has anyone had any similar experiences? If so, please tell us about the resolution process and whether or not it was resolved to your satisfaction.