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Thanks again OG. The parcel was sent with the post code provided by the recipient. After I sent it, he then emails me with the correct post code, which is one digit out. I go to the courier's Website on my laptop and find what I can only assume is a way to alter the post code while the parcel is still with the courier driver. I get an acknowledgement number, but no further communication. Today, I finally go back to the tracking though the Website to discover that the parcel has been delivered. A fact which I still have to confirm with the recipient. Also, i did try the '71234567' in lieu of P1234567, but it wasn't having it.
Etch, thank you also. Unfortunately, you do not get the 123 button on a keypad, just the keyboard.
Unless I hear from the addressee that he hasn't got the package, I shall close this subject for now, with sincere thanks to all of you who responded.