There are a variety of options available for billing for cases. There are currently 3 methods for billing for time and activities in Caseload Manager.
1) Overrides entered in the case have the highest priority.
Simply click in your case record and add in the override amount in the upper-left of your Case Information section.
2) Activity/calendar types amounts have the second priority.
For information about charging by Activity/Calendar types, please view the tutorial here: Charging by Activity
3) Case types amounts are the default, but can be overriden with the other two methods for billing.
To organize your Case Types to bill correctly for your office, please follow the instructions here: Calculate Balance Due