Wells Fargo complaint: Auto loan and employees

I got an auto loan with Wells Fargo on Easley SC. For a 2018 Nissan Rogue. I purchased the car last January 2021. My cousin cosigned for me. She passed away in March 2022. I sent a cashier check for the full payoff. Then suddenly come may after my cousin had passed away. They started sending out past due letters to her address and calling me 5 times a day trying to say I was behind on payments. Even though my bank statement showed they got the money. I got the paperwork in saying paid in full . her name removed from the loan.. They started saying they never received the money. Even though I faxed them proof. Then night before last they had their recovery company sneak out and steal my car in the middle of the night. I have being on phone with them numerous departments trying to locate it do at least I can get my personal stuff and the car and I have being given the run around and told to call back.