Crash sounds on the front axle / brake ?

Hello, on my new Ateca FR 2.0, built at the end of 2019, purchase March 2020 with 7 kilometers, I have a crackling noise on the front axle / brake. If I drive slowly backwards on the driveway, for example, until the front wheels stand in front of a 5 cm high edge and I want to overcome this then, under load, it cracks on the front axle / brake. The Seat dealer tells me that it is the brake pads that easily detach / move from the brake cheek. It would be normal and it would have All vehicles. Writtenly, he wouldn’t confirm this to me…………………….. Does one of you have the same problem, if it is at all one? Or is it totally normal? Hope I explained it to some extent and would look forward to a feedback.