We took my wifes 2015 mustang in for oil change an...

We took my wifes 2015 mustang in for oil change and tire rotation for the extended warranty. just got around to looking it over and found a broken inner fender tab on the right rear .I wasnt told anything about it happening .Its not that big of a deal but trying to hide it is .we have only put 1500 miles on this car in over a year so it stays in the garage all the time .I know it wasnt broke before .