Good morning Alessio We have sent in our blender for repairs via your website and I included images of the rotor that was burnt, resulting in low torque on our (virtually brand new) blender. I also explained my diagnosis of the fault so that your repair team can hone in on the reason for the return to repair. I was a little bit surprised when they came back to me and said that the unit was fixed and that I had to pay for a new spline drive socket. I then informed your repair technician that the drive socket is still brand new, and even sent through a picture of the male section that was on the mixer jug on our side with zero wear-and-tear, and asked why it was replaced. The answer I then got was that it is the most common fault and that these parts wear out.....and I can collect my mixer since it passed the blender test whilst blending high viscous oil. I disagreed with the diagnosis/repair and insisted that they re-look at my pictures sent as well as the actual rotor on the unit. I was then told that they cannot repair "what is not broken"....Oh my. I then insisted on the repair of the rotor and the replacement of the original drive socket, which was done accordingly. I received the blender back; working like it did on day one and with a drive socket that had zero wear on it, as expected. So all-in-all the repair was a success, but it should not have been necessary for me to insist on repairing what should have been blatantly obvious. Kind regards. Mario