The most common tracking number format is a combination of 13 alphabetic and numeric characters, usually starting with 2 alphabets, following by 9 digits, and ending by "GB" (e.g. AA 000 000 000 GB). Some other less common formats may also exist.
If you have any question regarding the delivery process of a package, call [+44] 08457-740-740.
The most common cause is incorrectly typed tracking number. It is advised to check with the sender if you are not sure what the number is. Besides, it may take some time (usually up to 24 hours) for a new shipment to show up in the system.
It is advised to check with your local office for accurate results, because the hours of delivery vary by product and location.