1. A method of managing one or more presentation instrument accounts, comprising: receiving at a host computer system information from a client defining an account management rule, wherein the rule comprises: a client-defined event; a condition; and an action to be taken if the condition is satisfied upon an occurrence of the client-defined event; at the host computer system, monitoring the one or more presentation instrument accounts for the occurrence of the client-defined event; at the host computer system, upon the occurrence of the client-defined event for a specific account, evaluating the account management rule; based on the evaluation, taking the action, thereby managing the account without human intervention; and providing notification of the action to an individual.