Hello 'bas777',
When you buy, you have only 45 days to file a claim for a return or refund. You only have 60 days in which to leave feedback to tell others about it. Sadly, you have missed both deadlines.
So if you paid with a credit card you can try for a chargeback, but otherwise there is nothing that can be done. It is a very common story from new people with little ebay experience. For future reference, read through the following link about what to do if something goes wrong:
http://pages.ebay.ca/help/buy/item-not-received.html