I'll give you an analogy. Your brand new car is squeaking, you put it into repair garage and tell them it is squeaking.
You get it out of the garage, guess what it is still squeaking!You go back the mechanic and shout at him "It's still squeaking", he swears it isn't.
So you both get in the car, drive around and point out the problem to him exactly....
Whereupon the mechanic says
oh I didn't hear that, sorry my hearing isn't that great, I'll fix it.... Or the mechanic says,
well actually that's your soul of your left shoe rubbing the break pedal. Or the mechanic says -
oh fair enough, I will fix it but there's other faults I've found that need to be fixed first.
So really your responsibly to point out the problem, their responsibility to fix it (if it is indeed an issue). Issues often don't get resolved
by magic.