xbox code
take it up with the seller not sure if there is buyer protection on these items now but you can try and raise a dispute if they won't put things right
if the code was sent by email there will not be buyer protection
if it was avoucher you may be lucky
http://resolutioncentre.ebay.co.uk/
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i have the voucher card still so i cant see why im not protected, can they not give code to microsoft and they should know time and what was on code