| Julian,
I had trouble with a Yamaha once and they treated me like garbage until they found out I was a band director and my students do mega business with Yamaha every year -- all of a sudden the instrument was fixed and a letter of apology came from a big guy with the company.
I suggest you get your local music store where you bought this horn involved. They hold purse strings to the company -- you don't if you are a student. They have the clought to take care of this pretty fast if they want to do so.
If you are a music major I hope you are taking notes. NONE OF MY STUDENTS BUY NEW SELMER PRODUCTS because of the problems like you are experiencing.
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