Carvana complaint: Delivery date rescheduled 3 times

I started the purchase process on 11922. I took out a third party loan, sold my current car to Carvana. Date of delivery was set for 111222. Carvana drops the ball and does not call my bank to verify the check (that I have in my possession) and the delivery gets moved to 112122 at noon. I spend over 2 hours on the phone to ensure everything was good to go. I took off work. I received a text this morning stating that my car would be delivered in a couple days and listed 1121 at 12. Tonight at 6:15 I received a text an email saying the delivery is having an issue and won’t be here until 1125 at 4:30pm. I called and I texted. They would not allow me to speak to a supervisor. They said that was all they could do. I am so beyond stressed out and have spent more time on this purchase than any other far purchase I have ever made. Be careful buying from Carvana. I would look somewhere else first