| The obvious reason why your post code does not appear would be age, the postcode to geographic datasets can take up to a year to find their way to end users, assuming the user regularly updates their database.
The less obvious reason would be if it is not a normal postcode, business, PO box, ex-PO box, the former postcode of a post office or occasionally university halls of residence. These can be particularly difficult to locate and match to an area due to the lack of information in the address. A quick query / complaint to the OS should resolve this. |