After earning enough points to redeem for a prize that was on my wish list, it showed up as being not available. Marlboro has a history of running out or rewards before Icollect enough points, so I figured I had just better order something of a lesser point value, as there was nothing else with a higher value that I wanted.
After ordering the secondary item, the wish list item was once again available! I contacted them to ask if the order could be cancelled and points returned so that I could get the item I really wanted. In a nutshell, they said all orders are final, and to keep buying their cigarettes to earn points for the item I wanted.