Accurate summary, with due allowance for Qantas inconsistency. Today, I pursued my missing DSC's from December. I'm now 80 SC's further ahead. Was on hold for ages. Perhaps there's a standing instruction to ensure a minimum of ten minutes on hold for anyone chasing DSC's? Should have been a no brainer as the missing DSC's were from segments of trips where the other segments had credited within a few days.Seems pretty clear if DSC do not auto post within 2-3 days of the original SC's posting for eligible flights then one will have to wait the 6+ weeks and chase up to get the credit. So tiresome. Luckily 95% of mine have posted properly