The untracked deliveries go out by Royal Mail in the postal system. While most arrive on the intended date, it is not as reliable as our paid tracked services and may arrive one day either side of delivery date, excluding Sundays.
We therefore can not guarantee this, and a refund or reorder will not be offered if an ocassion is missed. In short, if it's essential an item is delivered on a specific date, then we would recommend you choose a tracked service.