Horribile experience

Did an online application on the 8 /04/2024. Deal approved. I received a reference number and on approval was told to send the offer to purchase to a specific email address, witch I did. Zero response. Tried following up after being on hold for nearly 30 minutes they could not pic up the application on the system with my id number, gave he reference number and they found it. Was told offer was received will have answer by later that day or close of business Monday. Tried following up as the dealership had another buyer for the car. On hold for 30 minutes, spoke to a lady , only to be put on hold again and then the call dropping. Phoned again, on hold for 28 minutes only to argue with me. Cannot find the application with my id, which is weird as I use said ID to log into my Wesbank profile and I can see the application. Wesbank employee is arguing with me and telling me I app**** through Audi, when I pointed out to him that I am not buying a car from Audi and did the application with Wesbank the call was dropped. I was told to follow up with Audi. Please explain to me how the application was done with Wesbank, offer sent to a Wesbank email, but I have to follow up with Audi?????N