Excessive usage is handled differently between Managed Daily Limit, Managed Day Pass Plan, and Pay-As-You-Go subscriptions as detailed below.

For Managed Daily Limit Plans

Users who exceed their plan's chosen Daily Hour Limit will be automatically upgraded to the next daily limit tier to better accommodate their usage (IE, from a 3-hour daily limit to a 5-hour daily limit).

For Managed Monthly Limit Plans 

Users who exceed their plan's chosen Monthly Day Limit will be billed separately at $4 per additional day used. 

For Pay-As-You-Go Plans

If server usage exceeds the prepaid amount, the account will be automatically billed according to the plan you have chosen. 

Further information

If you wish to read more about these policies, please review the links below: