if there was a mistake and my flight was credited to the wrong program is there any recourse?
I have had this issue at least twice. I credited Delta flights to Delta Skymiles. (My Delta number was attached to the reservation so that I could get a free checked bag.) After the flight, I tried to get Flying Blue miles instead. Flying Blue could not help until I called Delta and got them to remove the miles that were already awarded. I then had to get the account statement from Delta showing the miles were no longer there and present that to Flying Blue. This statement I got from Delta, instead of showing that miles were awarded and then rescinded, showed no record of the flight at all. Delta also would not give me a letter that they removed the miles. Therefore, to bolster my case the second time this happened, I saved the statement before and after the miles were reversed.