Very bad spray job on car

I sent my bmw m3 to the hail smith for a minor paint correction based on the many positive reviews online however , the job done on my car was bad . They blended the rear fend on my car with a color that was slightly lighter and the quality of clear they use is very poor . The was white overspray on parts of my car . I didn’t notice until I was about to sell my car and the buyer picked this up . I will not recommend this work shop as their workmanship is very poor and they job done was rushed.