Spilhaus FAKE Jewellery

They sold us Costume Jewelry. My partner bought me a Rose Gold ring and was told it is ROSE GOLD. He paid a **** load for it and after many emails and phone calls to Spilhaus, sending images and sending it to head offices I was told that I did not look after my ring. I do not even use chemicals on my hands, or wash dishes, I work at a desk! I sent the ring to be tested and was shown that its fake, not even real gold or rose gold, its costume jewellery!? And now they are not even willing to reimburse me or exchange or anything?!?! I can't even get it fixed! Disgusted