Complete corrupt and careless Service department.....

Complete corrupt and careless Service department.. first off, back in 2015 they recommended brakes on my car. After I got a second opinion it was determined the car did not need brakes, and it was 69k miles later that they needed to be done. Once they do the brakes they forgot to tighten the bolts on the brake caliper . Move a year later and the front brakes are seized up and management can t answer my question if he thinks this may be due to mistakes made by the technician, and is now trying to charge $1,500 for a brake job on a car that had brakes done only a year ago.
on top of this, they have blatantly checked green boxes on multipoint inspections with out inspecting the vehicle and filling the fluids.