I recently took my vehicle in for a transmission rebuild. I was given an estimate of $1800, and gave them the go ahead. They called me the day after they began repairs and said it wold be anywhere from $3300 to $8600 to complete the job and with no guarantees. We agreed it would not be in our best interest to repair this vehicle. When I called them about the best time to have it towed out of there business, since it is no longer drivable, I was told I have a bill of $790 for labor to tear it apart and tell me it was not repairable and if I want it put back together the bill would continue to go up in price. Is this normal and legal?