Originally Posted by
sydneyracquelle
Common problem as they book into G class on Virgin I think and this class on DL doesn’t earn mileage. So you just need to call in and they will process it in about 7 days.
Correct. VS G class is the booking class VS uses for Upper Class awards when you redeem miles. So the DL system just sees it as an award flight and won't award any Skymiles/MQDs for flight. GUCs applied to AF/KL flights book into Z class which is a revenue fare class on AF/KL (like DL, this is the lowest business booking class on AF/KL) and thus do not have the issue.