I flew a US segment on October 1. As I checked in - I handled over my *G card to make sure my UA FF number was on my ticket. After several weeks of waiting for it to post - I sent in my info for missing mileage. After submitting it I got the "it will take 4-6 weeks to verify" message. Within two days the miles were in my account. I was really worried since the missing miles would have a major impact on a MR later this year. Thank goodness it cleared so quickly!