I have a feeling that some people have been asked to leave +ve feedback by the seller prior to even receiving anything.
And some of those "buyers" are obvious fakes.
"Fine for the price, the order was given, the cargo is expected."
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I feel the seller might have had a better chance if the prices were not so ridiculously cheap, like £30 instead of £16/£17
Having said that I think some people have actually been fooled.
A 5" media player just might be got for £17 inc P&P but no way a 10" tablet.