Abstract: A system and method for providing pre-paid wireless telephone customers notification that a wireless telephone account has been replenished. The present invention delivers a confirmation notice directly to a pre-paid wireless telephone customer through the customer's wireless telephone. The notification system receives account replenishment information from a replenishment system and updates its database to indicate a notice must be sent. Because the wireless telephone may or may not be available when the notification system is ready to send the confirmation notice, the system intercepts registration messages sent by the wireless telephone, thereby allowing the notification system to detect when the wireless telephone is available.