I purchased an item recently which was clearly listed in both the photos and the written description as an original upol gravitex schutz gun but the sell sent me a very cheap unbranded underseal gun instead. I contacted the seller right away and have since put in for a refund due receiving an incorrect item. Still no reply. His listing states no returns but I have clearly been misled by the listing and mis-sold. I have tried to get ebay involved but haven't been able to get an contact with a human.

How do I proceed