| Scenario | Handling Strategy | | :--- | :--- | | | Show generic error "Unable to generate number at this time." Log backend error. | | Transaction Exceeds Limit | Transaction declines. Push notification sent to user: "Discard number declined due to limit." | | Number Unused at Expiry | Number status changes to EXPIRED . No charges occur. | | User Deletes Account | All active discard numbers are immediately suspended/canceled. |

A package is damaged in transit and must be discarded by the carrier (UPS, FedEx, Amazon Logistics).