I was greatly disappointed when I received the new Resmed 11 and the new mask. When I put the mask on the nose piece was down to my lower lip. It was too large. The mask size was not discussed when I placed my order with your sales person. When I called in to complain about the mask I was told that I had to pay an additional $29 for a small mask,,,,, on top of the original $69 for the mask I received. No credit nor trade-in was offered. I will not recommend your company to the many people ...