Buying iTunes/App Store gift vouchers
We've got a few iPads for teachers to take over the summer, trial apps and report back in September. Obviously we don't want to link the school credit card to the Apple ID so gift cards seem the most sensible way. But how should I buy them? If I buy them from the Apple Store using another Apple ID (We do have one with the credit card on file) will it give me the code straight away which I can add to the other account? Or am I better off just going to the supermarket and buying physical cards??