Thank you everyone. Osamabawab, I will certainly check out your recommendation.
If I could have avoided Mitsubishi I would have but when I broke down in 40 + degrees with my daughter, I had the AAA out and they had to tow it somewhere. As I had no other garage back up recommendation I had to send it to Mitsubishi even though I knew they would be expensive. But this floored us completely. I think I will take it up with that new consumer rights section recently advertised. But I am deffo going back to see a manager about the duplication of work.