A friend's United account is set to expire very shortly and wants to know the best way to extend the life. Worried that a mall purchase won't post in time. Obviously doesn't have the credit card. I know there are lots of options like a magazine purchase, but would donating 500 miles (the minimum) via United's site (https://secure.unitedmileageplus.com/CharityMilesSSO.jsp) work?
anything else other then donations.is there another forum already for this?