Complaint About Star Nissan Vereeniging CBD

Am having such a horrible week because of what happened with my car Nissan Qashqai.. I took it to Nissan Veernaging on 31 August 2023. Till today I don't have it. The whole week I have being traveling with Meter taxies which made me late to work for the whole week. And no updates and communication from their side,I have to call or go to Nissan to ask what's happening. According to Bianca who have been assisting me.On Thursday 31 August I took my car because it was showing an engine light which has being appearing and disappearing. So fist time I took it they said is it's a battery then I bought a new battery at their parts department one that they recommend and they put it themselves and then they engine light still appeared again. So the technician said I need to bring the car immediately when the light appears so that he can put the machine to see what's wrong. I did that on 31 August 2023 while the car was having that light. The technician said it must stay for 24 hours. Then Monday I went back to the dealership but they said the technician is still Buzy with it. On Tuesday I called again no feedback then Beanca said she will see if she can get me a courtesy car but till today I don't have it and am just from the dealership now and they said my claim was submitted to the company called Innovation for claim on Wednesday and they return the claim saying it's not clear then Bianca received the information from the technician today that is Themostart and they resubmitted the claim for a courtesy car again just now and they don't know when I will get the car or the courtesy Bianca says that there is so much she can do.. Am so disappointed and I might still spend another weekend or week without a car. Can Star Nissan Vereeniging CBD fix their customer service!