Terrible service

My car was taken in with them to do minor repairs 2 weeks ago. They promised me my car would be ready on Friday the 5th of July but all of a sudden there was an issue with the window...they have not assisted me with a rental car to use during this time and I have been away from work. They told my husband that today being Monday the 8th my car will be ready and after 2 fking weeks the paint job is wrong!?! what sort of establishment is this. Now I am told only on Wednesday it will be ready. How am i to explain this to my place of work. Come on people do better, run a proper workshop. I DO NOT recommend this workshop to anyone wanting to fix their cars.