Is this a deal that is going wrong?

I do believe that I got a fair deal. The car I bought is awesome. Theo and Mervin was awesome in negotiations. I took ownership of the vehicle on the 18 Jan '18 and handed over the car that I traded in. I called the bank on the 26 Jan and asked if they received settlement on the IX35 and they said no. I called Mervin on the 26 Jan and said he will call me back. When he called me back he said that the finance team missed the payment. I called him again on the 29 Jan at 8:30 asking Mervin to ensure the settlement is done today. At midday I called again and asked him to send me the proof of payment however the payment was never done. At 15:30 I went around to the dealership and Mervin was not there, on his way back from Pretoria. I'm still waiting for confirmation that this is done and hope to receive an answer tomorrow.