1)Don't overload the server with heavy scripts and huge sql databases.
2)You will receive an invoice 7 days before your due date.Pay it in this time,it will be suspended when you get overdue.
3)Overdue accounts will be deleted without further notice after 14 days.(You can request a month from me if you are having serious problems)
4)Mind the rules here
http://underhost.info/tos.html