I bought a cossatto diablo last month and within a couple of weeks the wheels started wobbling. Having registered it ( very organised I thought (smile) ) I sent it back to cossatto to get it sorted. After several weeks I called them and they said that they can repair it, but it will be weakened, and they will charge me! (shock) Has anyone else had this issue with them...and does anyone have any ideas of what to do now?