Repainting ABUSSILBER …I could vomit!

Hello everyone had on my 3.2er a long scratcher in the door (about 40cm). cover case. now I had the car in the auditorium to repair and repaint. today. 750euro. … … the door looks now as if the son of the boss had made the on the backyard with spray can himself. the color does not fit correctly, too dark, too blue, the paint itself totally stained (three long strips with too little paint in the long direction) and the metallic particles see in comparison z … … …but what should you ask for for 750euro… I could really vomit!!!! if I would deliver such a work to my customers in my job, I would be in two weeks at resin4 !!! and such a thing at a fat audio center!!! ask: -has any experience with avussilber reworked? -is the paint always mixed up, or is there the original of audi? -does anyone know a professional paint shop in the pott/eat that analyze the time? can? am grateful for every tip!!! please save me the weekend!!!