First, I did not intend to join this thread, I don't care what brand of device you own, it's all mass marketing regardless and most of the time built by cheap labors and sold for maximum profit. I also don't think its necessary to insult someone else's intelligence because they use Apple, I think that's a petty thing to do, not everyone care about technology and some people can afford premium price. (There are exceptions that I won't go into, ie fanboys).
My reason of posting is simply to add my own recent experience. I never purchased Apple products and I don't use their products (although with the exception in the past I have bought used iPods for family members).
For this Christmas, I bought some Chromecasts and also an iTunes gift card for family members so they can get a paid app that's Chromecast-compatible. Tried redeeming the gift card and it said the code was already redeemed. Aside from informing the store I purchased it from (you'll be hard pressed to get a refund since stores get commissions from selling the giftcards), I emailed up iTunes customer service, included my scans of the gift card and receipt with all the info I can give. After few exchanges they basically just gave me a run around and couldn't really do anything.
I searched Google and found plenty of people having the same issue with iTunes giftcard and not getting their money back, and this have been going on for a while now. How is it possible that Apple can let this happen at this age is beyond me, my guess is it seems to be an issue with the way their server handle the activation (I'm not about to think they are dumb enough to accidentally duplicate codes or get their giftcard system hacked), but it's the first time I ever got this issue from any giftcards I bought.
The way I see it, I'm not even an Apple customer and they stole my money. I will most likely continue to never purchase their products until they give me a refund (the only way it is possible is likely through a class action lawsuit), I don't care about the money itself, but I would be naive to expect principles coming from Apple (or any corps) in term of having decent customer service with the amount of money they have. But with a lot of other negative aspects I knew about this company and this experience, it's just more bad taste in my mouth about them.