I have to say my experience with posties in Ireland has surpassed my experience with postcodes. I feel like the most valid "post code" would just be the name of the postman they should ask if they're not sure.
But I have to call out Ryanair in this context. For many years, before eircode, they demanded a postcode on their payment page. An Irish company, serving Irish customers, demanded postcodes when most the country didn't have them.
(And I paypal still believes my postcode is null. I don't recall ever entering that, so I wonder where/when it derived that.)
But I have to call out Ryanair in this context. For many years, before eircode, they demanded a postcode on their payment page. An Irish company, serving Irish customers, demanded postcodes when most the country didn't have them.
(And I paypal still believes my postcode is null. I don't recall ever entering that, so I wonder where/when it derived that.)