Mazda and N4 Autocraft CAN'T deliver

I got my new 2018 Mazda CX5 end June 2018 and unfortunately I got accident 8 October 2018. The whole first weeks was wasted because the car was towed to the wrong panel beater and when I call King Price Insurance I was told that the car has reached wrong destination but is was also send to wrong places as they couldn’t tell me where my car is. On the 23 Oct 2018 I got sms that the car has been booked with N4 Autocraft .31 Oct 2018 I was told that there is back order problem in Japan ,26 Nov 2018 mazda confirmed that all the part has been provided and 03 Dec 2018 Auto craft cornfirmed that the Car will be going to paintprep , 10 Dec 2018 I got another message from Autocraft that the car has been scheduled for completion on the 12/12/2018,thereafter it was estimated to be completed on 14/12/2018 and when I call them I was told that the car is not finished and only on the 17/12/2018 Autocraft advised Mazda that they have received wrong part. Autocraft promised to give me a courtesy car because of their delay however I was given the unreliable car of the owner. The car was having engine problem, boiling and I have to fill up the water all the time. Mazda ordered the outstanding part and currently there is still back order problem. After I complained with the car from Autocraft, they advised me to bring back their car but no other car was offered from their side and only find out that they have ordered additional parts again from mazda and I really doubt that they know what they are doing. Mazda promised to give me a courtesy car the same day I have delivered the panel beater’s car and for the whole day the guy at mazda advised that he is waiting for authorisation from the executives and they are in the meeting. He even promised to call which he didn’t and I was left frustrated without transport to go home. I don’t feel that Autocraft can repair Mazda because whilst they have not received all parts, on the 8 Jan 2019 the send me SMS advising me that my car is now in assembly and I’m not sure why mazda is still selling CX5 to the public whilst they cannot resolve their back order problem issued. This is frustating