When a patron's account is expired and their category needs to be changed to one that charges an enrollment fee, they end up with two fees if their category is changed before they are renewed. It's unrealistic to expect staff to remember to always renew the patron before changing their category. To recreate: - have an expired patron - have a category that charges an enrollment fee - edit your patron to move them into your category - confirm your patron has been charged the enrollment fee - renew your patron - confirm your patron now has a second enrollment fee charge Possible solutions: - Do not charge an enrollment fee on category change for expired patrons - Ask the user whether or not the charge the enrollment fee on category change for expired patrons - Force renewal of the patron on category change