You've messed up the UK post coding stuff
My home address is Basingstoke, RG22 ... you've translated that into "Basingstoke, Reading".
The nearest big postal sorting office is at Reading, but that's seventeen miles from Basingstoke.
The UK post coding system is the weirdest in the World, it doesn't appear to have much logic and it certainly does have the strangest syntax rules.
Can you fix that?
Arrgh, this should have been posted against Facebook Grader