Not able to use Guernsey postcodes GY in the iTunes account
There is a long outstanding problem that iTunes does not allow you to put a Guernsey postcode in your address, says its invalid. The workaround seems to be putting a random UK postcode to get around the validation, but this means you get charged 20% VAT on any subscription services like Netflix.
Why does Apple not recognise the GY postcodes or is there another solution required?