Horrible Service

My car was hit by the Nov 2015 hail storm. It was towed to Renew- it Edenvale since it was an approved dealership for the work needed to repair it. I got it back on 18 Dec 2015 but repairs were not complete. When receiving my car I voiced out my complaints and they explained how some parts are still on back order. The customer service manager told me to write him a list of all the repairs needed and they will complete the job in Jan. The next day I had to return it because one of my tail lights was not indicating. They 'fixed' that while I waited and took back the car. In Jan the customer service manager gives me a date that his team will be able to continue repairs and that it will only take a day. As I'm expecting to get it he calls to say he needs one more day. It's better than having it bring it again. After 2 days they deliver my car with none of the repairs done as per list I emailed to him. I cannot comprehend why someone would book a date for me and make me miss 2 business days when they haven't received the necessary parts and to top it off some of the repairs eg tightening my lose tail lights shouldn't be waiting for such. This is totally unacceptable!