If you live in the Channel Islands – Jersey, Guernsey, Alderney, Sark, Herm – you are not allowed to use the iTunes store. Entering your postcode in the billing section simply gave you a message “the iTunes store is not available in your region”.
For quite some time, however, entering your postcode lower case would get around that restriction and work. Indeed it worked for me. At the time however, I didn’t enter any billing information. I just went in to try and that info and it won’t let me – with the same error as above. And it doesn’t seem to matter how you enter the postcode.
So unfortunately, it seems that particular workaround / hack for Guernsey iTunes store wannabe users has been patched. 🙁
UPDATE 1: Friends of mine have said that if you enter a valid postcode in the mainland, then that worked for them in the past. In theory that should ruin any chance of people able to buy something (your CC shouldn’t authorise…).
UPDATE 2: I just tried the above and got an error message, asking to enter a valid postcode (despite entering a bunch of valid postcodes), so it seems likely that they’re doing an IP address check now as well. Bastards. I have a few ideas on how to get round this.
UPDATE 3: Please read my post on how to access the itunes store from a restricted location which has instructions on how to get around this problem.