Hi Guys,
I'm sure a number of our active members will tell you that the best place to go to would be directly to Apple and I would say the same. Although a bit pricey but you would be sure that you get the real stuff risk free.
I saw this post from one of our registered sellers, maybe you can try sending him a PM if you are interested:
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Also here are a few more posts which you may find helpful:
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If you browse around the forum you'll find more posts about the unending search of wholesale suppliers for Apple products. Anyway hope this helps somehow.
Happy Holidays! :)