Fixing a door latch

I went here because my door latch was broken and my door wouldn't open. When I told the mechanic all he did was pull on the door and handle(which wouldn't open of course) and decided that the problem was the motor in the door. He charged me over $200 and made me wait for five hours before they finally called and said that it was the door latch and he needed another $100 dollars. We said forget it and when we picked it up they didn't even clean off the grease marks they made of over the inside of the doors and window. AND MY DOOR STILL DIDN'T OPEN! We called again to have them fix the botched job and they said they were going to charge $50 JUST TO OPEN THE DOOR TO LOOK AT IT! DO NOT go to this place unless you want to be ripped off by half-ass mechanics. HORRIBLE EXPERIENCE!