Shame on Cadillac! I've had to pay for 4 1/2 month...

Shame on Cadillac! I've had to pay for 4 1/2 months on a car I can't drive! I leased a brand new XT4, fully loaded in Sept. A few weeks later my husband had an accident that took out the rear corner of the car. Morrie's Cadillac in Minneapolis sent me to the Morrie's Collision Center. I knew GM had had a strike, but it was over so I wasn't fearful of getting my car fixed in a timely basis. As it was an accident, they wouldn't give me a loaner and I was forced to rent a car. After 3 weeks, they still had no ETA on the part. They finally conceded and gave me a dented Subaru Forester to drive. My previous car was a Mercedes, and I moved to a Cadillac, and now was driving a dented Forester, and paying my lease of over $500 per month for the privilege. In late November, after 6 weeks of waiting, there was still no ETA on the part. I called the dealership, but it wasn't their problem, it was a problem at Cadillac corporate and I should call them. I called corporate and asked to be escalated to a manager. The woman on the phone told me it wasn't their problem as I'm the one who had an accident. The fact that there was no part available was also not their problem. I asked to be escalated again and was told there was no one higher than her. She was the be all, end all, final say for Cadillac corporate but I could always call the dealership or the collision center with my complaint. I continued to drive the dented Forester and paying over $500 a month for the lease. In December there was still no eta and I was told that I should feel lucky they gave me a car to drive as they didn't have to do that. In January my fury had reached a new level and I called Morrie's Cadillac in Golden Valley and told them this wasn't right. I wanted to be refunded for 3 months of paying for a car that there were no parts for, and I wanted a 'like' car to drive as there was still no ETA. I told them I was done driving a forester and would take this fight to social media. Within a day, I was given a shell of an XT4 with absolutely none of the features I was paying for. No seat memory. No safety feature of side warning lights. No massage, hologram windshield display, just a shell of the car I'd been paying for now 4 months. I was told to be grateful for the nicer loaner. it's now February and I'm told they received the part, and I should have the car back within a month. I've also been informed that no one will do anything about the five months of lease I've paid for without being able to drive my car. This whole mess is disgusting! I own that we had the accident. I bought this car in good faith that if something went wrong it could be fixed. This nearly 1/2 of a year to drive the car I had to make monthly payments on. SHAME ON CADILLAC! Shame on Morrie's. The day they knew they couldn't get the part, I should have been given a 'like' vehicle to drive. Reimburse me for 3 weeks of car rental. Reimburse me for months of driving a dented Forester. Reimburse me because you couldn't send me a part. Replace my vehicle or give me extra months at no charge on the end of my lease. Reduce my payment because I'll never come close to the miles I've been paying for. Apologize for the rude and arrogant Cadillac representative. I don't care if it's GM, or Cadillac or Morrie's corporate or the men at Morrie's Golden Valley Cadillac, but you can't just run over people like this. Anyone have any suggestions at all???? #3weekstogoSTILL #WRONGED