Very very bad service from JEEP SA

My vehicle's on board computer was showing that car needs an oli change and so I booked it in at Ronnie's Motors King Williams Town in the Eastern Cape and was told to bring it on the 15th December 2020. Brought the car in the morning and in the afternoon received a call from the dealership that they are still waiting for authorization from Jeep SA to do the Oil change as the car is still under service plan because they can't do anything without authorization from Jeep SA. At around 16:30 I went to the dealership to check and they told me that Jeep SA has not rep**** and I would have to take the vehicle and only bring it back once Jeep SA rep**** and gave them authorization to do the oil change, mind you I cannot use the vehicle because it's showing 2 percent oil life on the on board computer. I am now stuck with a million rand car in my garage that I can't use because of JEEP SA's bad service. I'm very disappointed with Jeep SA's service,it's the 17th of December now I just called the dealership and they told they sent another email again to JEEP SA and still they have not rep****. Very very very disappointed. S Khambi **********