Hi David,
May I ask what advertisement you are referring to? It would help if you can also provide us with the link. This has been the topic of quite a few posts in the forum and I have listed the links below.
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As what Richelle said, we have not found any suitable suppliers for this product and at the moment, the only way to go is liquidation. And by suitable, we mean suppliers who have authentic Nike products, are well established and are proven to be legitimate.
Like other big name brands, Nike sell their products through their authorized distributors and licensed retail stores. This is their course of action as part of their campaign to put an end to the distribution of any Nike imitations.
Kind regards,