e-Mokka squeaks while braking

Moin, I have an e-Mokka Ultimate EZ 03/21. In the meantime 4000km have been driven and I am satisfied. Fits well as a city car. In the last weeks something nervous has developed: the car squeaks while braking, especially when you start driving in the morning. Back slowly out of the exit and it squeals super loud – you can hear it from forever far away. Now it was clear to me that the car as an e-car of course uses the brakes less. Nevertheless, I do not want to accept that the car People look everywhere at you shocked. So I drove to the dealer and I was very disillusioned with what they meant. They slowed down several times and the squeaking is gone. That’s all they could do. I’m just supposed to give a little bit of gas and slow down at the same time. In my opinion, this is more than unsatisfactory. What do you think?