Preferred Auto Body Center

Had my Accord back bumper fixed 1yr ago after an accident from Preferred Auto. Recently, i noticed my bumper paint is cracking already only after 1yr!!! When i took in my car back to them, they were going to charge me to fix my bumper again even though it was their fault that they didn't fix it correctly a year ago. I even spoke with the owner named Glenn but he was extremely rude... I will never go back to this place!!!