Mezan Rear stay legs

Hello

I asked my local garage if anything could be done to raise the rear of my Mezan to avoid the rear stay legs from scraping on speed bumps and ramps. They suggested that the rear suspension could be raised by adjusting the torque bar up a notch or two, but it turns out it it is already on its highest. Has any other mezan owner had this problem and have they managed to solve it or do they just live with it. We have had our Mezan since last year.