Does anyone know if Apple allows multiple accounts in iTunes from the same location? I have a US, Canadian, Chinese and Japanese account on the same computer; will Apple provide support if I let them know I have more than one account?
I believe they will. I accidentally had two U.S. accounts on the same computer. They did provide support in that instance.
I would avoid mentioning it if possible, but they should still give you support. If they refuse then just tell them that you have actually lived in all four of those countries and they won't really be able to argue with you.