Bad Workmanship

Got these guys out to do smash & grab on my 1series BMW & now refuse to follow through on our agreement of fixing the bubbles and bad workmanship. They say 2 year warranty. They initially had to do a few windows over on the day. I have called him, whatsapp, smsed and his ignoring my calls. I called them the Saturday to let them know that the windows looked bad..full of bubbles and scratches. Dont ever let these guys touch your car.