Q. Do we can additionaly add style alloy wheels and 17 inch tyre in Ambiant varient?

I contacted 2 different service centres regarding this. While both representatives told me that it was possible and they offered the service. But one of the representatives told me that but by doing so my warranty for the car's suspension will no longer be valid. I asked what difference does it make since Skoda only offers both the wheels on the same vehicle? His answer 'SKODA tunes the suspension in the factory based on the wheels weight, hence upgrading the wheel voids suspension of all warranty'. What should I do?