Originally Posted by
TiHabanero
Not sure if the tool slip during install or just seriously high torque applied and alloy deformed. Apply touch up paint to the shell as it will happen again the next time around anyway. Better yet, paint that area black. I think it will look better that way. .
I could understand this if it was something that you did at home, but the OP has a 2020 bike, so effectively new, and the the work was done at a bike shop, which appears to have messed up big time, add to that, the OP said it was done at a Trek Bike Shop, if a bike shop operated under a specific brand, the assumption would be that they know what they are doing with that brands products!