The customer has requested urgent service for a clogged toilet backing up into the bathtub and shower drain, which indicates a blockage extending beyond a single fixture. Because multiple drains are affected simultaneously, the obstruction likely resides in a shared branch line or deeper within the main drainage system. To accommodate the customer's request for immediate assistance, an evening service appointment has been scheduled and accepted. To address the backup and prevent further wastewater overflow, three immediate service steps have been identified. Technicians will first perform a toilet and branch drain clearing to remove the primary obstruction and restore proper flow. A subsequent drain line inspection will evaluate whether the blockage is confined to this specific bathroom group or located further downstream. If the clog is recurring or a structural defect is suspected, a comprehensive sewer camera inspection will be recommended to check the pipes for tree roots, severe buildup, or structural damage.