Why won’t iTunes accept my Irish postcode and yes I have checked the territory

Hey there Scooterboy1972,

Thanks for reaching out to Apple Support Communities. It sounds like you're having trouble updating your payment method. We're happy to provide some assistance.

Make sure the country/region that you have your Apple ID set to is the same as your payment method:

Change your Apple ID country or region

If the country/region is correctly, let's follow the steps outlined in these helpful resources:

Change, add, or remove Apple ID payment methods

If your payment method is declined in the App Store or iTunes Store

If you continue to experience issues, please reach out to us here: Get Support

We hope this helps.

Have a great day!