No guarantee

<p><span style="color: #555555; background-color: #ffffff;">I ordered seven light fittings from a Chinese company, boutiquebox, in November 2015 and have received only one (which is faulty!). The order was split up into four parcels, ostensibly because of the size. All attempts to track them has failed, the company hasn't resonded to queries&nbsp;&ndash; and all attempts to lodge a complaint and receive a guaranteed refund from eBay has failed. I have tried lodging the eBay complaint with the item number, with the invoice number and PayPal receipt number, and always the response is the same &ndash; the item cannot be found. Any advice?</span></p>