TomTom 910 system

My 910 worked grearn up my untill the dock would burn up my unit. I was told to send the unit back to tomtom, that they would look into the problem. I did as they asked sent the unit into them, about 6 weeks later,They (Tomtom) sent me a differnt unit, (refurbished) which was fine except for the fact that they didn't send me the window dock (which was promised to me) because they had a known problem with the mounts. now my 910 I have doesn't work. I sent them numerious letters, explaining my problem to them, Just as before, Their customers service department,has done a poor job, in assisting me in this matter. I have e-mails where they have promised me another replacement dock, dating back to feb of 2007. Now what? I paid a lot of money for their product. I am going to file a report to the BBB, along with my e-mails they have sent to me with the false promises,They were making. My 910 worked grearn up my untill the dock would burn up my unit. I was told to send the unit back to tomtom, that they would look into the problem. I did as they asked sent the unit into them, about 6 weeks later,They (Tomtom) sent me a differnt unit, (refurbished) which was fine except for the fact that they didn't send me the window dock (which was promised to me) because they had a known problem with the mounts. now my 910 I have doesn't work. I sent them numerious letters, explaining my problem to them, Just as before, Their customers service department,has done a poor job, in assisting me in this matter. I have e-mails where they have promised me another replacement dock, dating back to feb of 2007. Now what? I paid a lot of money for their product. I am going to file a report to the BBB, along with my e-mails they have sent to me with the false promises,They were making.