Sorry to hear. It sucks to be scammed but that's pretty funny!
I have never heard of that one.
Reminded me of a bracelet I bought by the port
authority bus terminal in NYC for $100.00 (20 yrs ago) I gave it to my girlfiriend and her wrist turned green. He even showed by where it was stamped 18K.

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2008 BMW X5 4.8i (E70)
Alpine White, Burl Walnut, Nevada Black, Sport Package, Cold Weather Package,
Premium Package, Technology Package,
Rear Climate Package, iPod adapter