How do I redeem an App Gift from a different App Store? "This code is only valid for customers of the ___ Store." My friend has sent me a gift app from the Singapore App Store whilst I'm on the Australian App store. 

I encounter the following:
"This code is only valid for customers of the Singapore Store."

How do I redeem this?
Related to this question.  

And the answer is, gift cards and gift certificates are redeemable only on the iTunes Store for the country for which they were purchased.