For repair job [reference], please state which event starts the repair warranty and the start and end dates, listing differing periods for individual items separately. If collection is delayed or the device is rechecked, does the original end date remain? If it changes, who confirms the new date in writing? Please distinguish the repairer’s undertaking from the manufacturer’s warranty. I do not assume that delayed collection or a recheck automatically extends the period, and am not requesting a determination of statutory periods.