How can I eliminate a charge off on my credit report?

In 2005, we had 1998 Taurus which we financed by in-house during the dealership. Unfortunately, the car had began gift me problems after 6 months. we had requested for them to come as well as get the vehicle. A couple of days later, we recieved the notice which it would be counted as the Repo until deemed otherwise. So now, we have this ,000 assign soured upon my account. They have been unequivocally brave when we call & wouldnt provide me any info, so the exclusive been there apiece since. What can we do to take info upon this comment so which we might equilibrate my approach out of this debt?