From what you say, there would be no proof of delivery so use the money back guarantee to get a refund.
Ebay do remove sellers who who use incorrect location or constantly break the rules, BUT they need to be reported, not on here, this is not ebay.
Many Chinese sellers may give an address in CHINA but it is the LOCATION on the listings that applies. So long as they dispatch within the UK they are within the rules, but using fake tracking MUST be reported.