Returns what PCBoard will charge a user for a certain activity. These are values the SysOp assigns in PCBsetup when accounting is configures and enabled.
Example:

	println "You will be charged ",PCBACCOUNT(CHRG_CHAT)," for chat"

Valid values for the field paramter are 0-14. Use of the corresponding constants is encouraged. (see the Accounting section)
See also: Accounting Account RecordUsage PcbAccStat