why do we need to use city and state in our addresses if ZIP codes are already linked to the city and state?
In: 100
When I was little my grandma sent us a letter and it had NSW instead of Vic as the state both states have the same suburb, but since she wrote the right postcode we got it.
I guess it’s a foolproof tool, if something is off the other details can be used. Wrong state check the postcode, wrong postcode check the suburb and state etc.
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