Siemens review: Cooking range

We bought Siemens cooking range in the month of September 2020, we installed it on 1 October 2020, since we started using we found that the buttons are so unstable that they take a 360-degree turn on every use, which we really found not good to ahead like this. We keep on using the range and suddenly one heater stopped working on its regular use in just few months. Kindly look into the matter at the earliest or we would like to exchange it. Kindly revert.