TouchNet, the application behind E-Pay and other UAlbany online stores, like Parking Management, is managed by Student Services. Any requests for assistance resetting credentials within that service should be directed to them (http://www.albany.edu/studentservices/).
More information at E-Pay - Login process.
Admin users should access Touchnet Marketplace via https://secure.touchnet.net/central.
Student login to ePay for tuition bills and the like is via LDAP, so usual netID and password and ITS password reset process are appropriate for that.