Customer tracking will only be available if you have been sent tracking information upon dispatch.
You can track your parcel via Royal Mail here (this will show the last known status only) using your tracking reference.
You can also track via the website of your local postal service (using the same tracking reference) once the parcel has entered your country and cleared customs. Please note that some regions postal services don't offer end to end tracking with our Royal Mail service so updates won't be available until delivery.
USA - Track via USPS
Canada - End to end tracking not offered by Canada Post
Australia - End to end tracking not offered by Australia Post
France - Track via La Poste
Italy - Track via Poste Italiane
Germany - Track via Deutsche Post
Spain - Track via Correos