Worst service from MMU Motor Group

On the 7th of June 2024 I bought a new vehicle from the MMU Motor Group. To date on the 22nd of July 2024 they have still not settled my vehicle that I traded in at the bank. Furthermore I have still not received my numberplates or vehicle license (which is a service I paid for), and the temporary permit to allow me to drive with the vehicle has on the 27th June 2024. I contacted the dealership on various occasions with valse promises each time. I proceeded to make contact with the GM of the group, He promised to sort the problems out, however he is now ignoring my messages and phone calls. To put the cherry on the cake, I received a fine on my the vehicle that I traded in, which they are driving with. This is by far the worst service I received from any car dealer in my whole life.