If there is only one delivery address on your order, and you have chosen Named Day or Next Day delivery (i.e. a specific date), all your items will be dispatched on the same day. Some of your items may be fulfilled by different warehouses, however, they will still be dispatched and due to arrive on the same day.
If you have chosen Standard delivery for your order (no specific day, on or before a certain date), all your items should be dispatched on the same day. However, if some of your items are dispatched from different warehouses, they may be dispatched on different dates - but will still arrive within the quoted delivery time frame.
If your items are dispatched from different locations, we will usually include all the tracking links in one email to keep things simple. If not, you may receive another email with the separate tracking links.