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Thanks Hans.
On a previous occasion, about 2 years ago, a second-hand book I ordered from Ebay arrived from Amazon. When I enquired through Ebay, the seller told me that he was having some difficulty but wanted to fulfil my order, so "diverted" a copy from Amazon instead !
I suspect that is what has happened in this case. I shall know when the item arrives, as it should be in an Amazon package.
Incidentally, this LED charge cable for my iPhone 6 only costs £1:54, including postage from Singapore.........you wonder where the profit is for these companies !