Hello, this shipment uses [container type and number], with unloading at [location]. Please confirm who arranges transport once the containers are empty, the depot or return location, and who confirms that location. Mark anything not yet confirmed. Separately state whether empty-container transport and handling at both ends are included or quoted separately, the required return timing, and how I obtain a record of completion. If the return location changes, explain how responsibility and charges for that leg are reconfirmed. This enquiry concerns shipping containers, not cardboard boxes; transport has not yet been commissioned.