Techs didn't put the parts back correctly and failed to screw oven walls which is currently hanging and a safety hazard for my employees. I have already sent a text to Dale, the mid-west regional manager with pictures of the incorrectly installed parts and hanging oven wall-I am waiting to hear back. They also didn't turn on the gas after cleaning, leading me to lose business for 3-4 hours on a Friday. I have been having a tough time with the techs because they don't seem to have the appropriate training.