Open an unpaid item dispute, you can do this after four days
Then they have four more days in which to pay
They still do not pay, after that four days you get your fees back, you can relist if you want, and they get an unpaid item strike
Also put them on your blocked bidders list
http://offer.ebay.com.au/ws/eBayISAPI.dll?bidderblocklogin&hc=1&hm=uk.rp73%28da2a6f2So they cannot do it to you again.
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Buttercup: You mock my pain! Man in Black: Life is pain, Highness. Anyone who says differently is selling something.