Thomann CMS-600 S C- Melody Sax

My Thomann CMS-600 S C- Melody Sax arrived and it is defective. The neck does not align with the body, so that when the neck is attached the octave key is held open, making the saxophone utterly useless. As required by customer service, I sent them multiple photos showing the defect, and I offered to accept a replacement instrument rather than refund. Today they sent me an email that claims the neck had been pushed "too firmly" onto the saxophone, so that the neck keys bent. Not only is this not what happened, but the photos I sent them showed that to be impossible. As received, the neck could not be pushed firmly onto the instrument as they suggest because of the defect. In order to get the neck onto the saxophone, you have to lift the octave mechanism, which is then held open at all times. My photos prove beyond doubt that this is a defective instrument as received. It was not damaged in shipping and was not damaged after receipt. Thomann refuses to acknowledge the truth and refuses to do the right thing. I would never advise anybody to do business with them, and I will be reporting them to international consumer services.