Mitsubishi? never again!!!

My Outlander PHEV is seven and a half years old, bought it 5 years ago and was very happy until mid-November. Then the drama began: On November 17th, at the start of the event, I got the error message “Drive unit defective”. After I first suspected a marten damage and had it examined in a neighbouring workshop, he was dragged to a Mitsubishi workshop. They read the error (loader gun defective), charged me, could a So he had to go to another Mitsubishi workshop. After 10 days (overload due to several outlanders with the problem) they changed the loading gun. Courage request rejected, cost €2000,-. But the car still does not go. The workshop has brought a specialist from Mitsubishi, He has left after a day of troubleshooting unfinished things again. We have meanwhile in mid-December. In the following week was informed by Mitsubishi, it was not repaired. It could be the front motor. The workshop has reasonably refused to replace the engine on this assumption (cost €2000,-). It could be the battery or the converter. The workshop has again submitted a bill of laxity request-rejected, again asked a specialist –rejected. Now it suddenly says “it is probably the converter, cost without installation €10,000,-, but it could also be the battery €8000,-. So it could be the front motor, the converter od he will be the battery. In total €20,000,- without working time and the already installed charging protector for €2000,- Because the contract workshop also doesn’t know any more, I sent a letter to Mitsubishi to know how to proceed – no answer!!!