This review is for service. Sales could be differe...

This review is for service. Sales could be different, I haven't dealt with them.
I am the foreman at a shop near AKsales.
I had a Cadillac with a bad Body Control Module. After replacement it will need to be reprogrammed.
I replaced the module and took the car to AKsales for the reprogramming and was informed that it would cost $155 and some change, and if the programming failed I would still be charged for their time. I agreed and left. Several days later they called and said that they programmed the BCM, but now the car wouldn't start.
I asked if the had reinitialized the immobilizer for BCM replacement. They assured me that they had and the car had another issue. I doubted this because it ran fine with the old BCM it just didn't have backup camera or taillights. I ordered equipment to program GM modules and went to get the car. when I get to the service department I was suprised to find that my bill was suddenly $210.
thats right, not only where they unable to program the BCM they wanted more money for failing. after a short talk they agreed that the amount we had agreed on was probably the price that should be paid, so I payed the $155, took the car and left.
when I got back to my shop I hooked up the Jbox and laptop and found that they did properly program the BCM, so I went back and selected immobilizer and hit "re initialize for BCM replacement."
the car started. Just one simple step that took me 10 minutes.
I am an experienced mechanic, but I have never had GM training.
why could a GM trained tech not do this?
So, long story short.
If I as an experienced mechanic took a car there for a very simple task, and not only was the task not completed, but they tried to charge me MORE for not completing the task.
How comfortable are you bringing your car to them for service?