no priority , problematic new vehicle purchased

Please refer to my case logged with you on the 8/2/2018. I purchased a 120i brand new , took delivery 21/12/2018 . On the 11th Jan I reported a whistling noise to the dealer , I took recording on 2 occasions which can be obtained from dealer (RUDIE BMW MELROSE), this noise is loud and I had to sit with this until a booking was made on the 24th Jan to book in car. upon collecting vehicle noise was still there and again this was booked in for repair on the 5/2/2018 . The foreman and technician went with me on test drive to confirm the noise . Upon collecting 2x repair afterwards we noticed the bonnet had a huge gap in front and the dealer could not adjust I was told it had to go to panelbeaters !!! The noise was still there again and again the car was booked in .I then went to collect on the 8th Feb where again the noise was confirmed upon test drive with foreman and the bonnet was still not aligned and went into panelbeaters 2nd time . The vehicle was now booked in a 4th time same issue and the bonnet is still noticeably out !!! This has reached a unacceptable level to which I have told the dealer I will not accept any further repairs and expect a new vehicle . I have not once received a feedback from bmw sa and I have had to call to find out what is development , The dealer principle and general manager at dealer are in agreement in substituting vehicle and have put this forward to you . I was told a meeting was held yesterday Monday 12th to which the finalisation would be done . When I called bmw sa I am told only next week Monday and they were replacing brakes???? This is not acceptable , as a long standing bmw customer this is not how I expect to be treated , The dealer has confirmed they have a same car to swop out . why I am I still waiting given the circumstances??? I want a call from a senior manager confirming this is being prioritised . It is shocking that there has been no priority on your side given the fact this is a new car , I did not go with a premium brand choice to be experiencing this level of service . Please take note no further repairs will be accepted by me and shocking a new car has had to go to panelbeaters ? This is a problematic vehicle and I expect it to be replaced for a new one in this week . I have all job cards confirming the 4 times this had been booked in as well as the 2 times at panelbeaters , Please ensure I get a call today