According to the Royal Mail website, first-class post in the United Kingdom is normally delivered in one working day, including Saturday. There is no maximum weight limit for packages, and a free certificate of posting is available on request. The minimum cost for postage is 0.39 pence. In order to track first-class post, it must also be sent as "Recorded Signed For" mail. This service incurs a minimum additional cost of 0.75 pence, a cost that increase with a parcel's weight. See resources for a table of fees.
Find your 13-digit reference number on the bottom right corner of your red "Recorded Signed For" label. This label should have been given to you by the post office when you sent your item.
Enter the character reference number in the "track item" field of the Track & Trace section of the Royal Mail website (see resources). The reference code will include letters and numbers.
Click on "track item." You will be taken to a page showing you the status of your sent item, giving you details on where it is and whether it has been delivered. When your item has been delivered, the status will show you the time and date of the delivery.
View the electronic Proof of Delivery (ePOD) on the status page once your item has been delivered. This will show you an electronic image of the signed card, confirming delivery.
The tracking system is updated at various points throughout the day. The Royal Mail suggests checking the website on the following day after 10 a.m. if the status has not changed by 3 p.m. on the current day.
If you lose your reference number, the Royal Mail will be unable to track your item.