I'm sorry to hear that! Sometimes the tracking can be updated before the parcel goes out for delivery.

Please check it hasn't been left with a neighbour or in a safe space, and then get in touch with us via our Customer Support Form within 21 days of dispatch and we can investigate for you. 
For queries that are sent in after 21 days since dispatch, our shipping company will no longer investigate and you will need to pay the shipping fee again to have a replacement sent. If you would prefer a refund, this will be issued minus the original shipping fee.