Phaeton suspension frustration

Would like to cry out my frustration here as a new Phaeton driver, also at the risk that the forum is not a wailing wall. As reported in my already created topic, my vehicle with a good 70t km (just 4 months ago bought!!!) spat out the level error and became hardy. The 2nd official VW/Audi Freundliche detects a defective Komfi battery and says everything well. On the way home it was also – just before Christmas. On the following day I am driven through on the highway It takes long waves, air-suspension-like, but tight, not floating. But short blows rumble like in an old car. A heavily damaged road rides like roller coaster… The VWler says “everything is repaired, everything works, no error messages, you have to compare with a 2nd Phaeton, but maybe that’s how it fits anyway”. Super. I’m mega-frustrated and just want to get rid of the box. e now have to agree that the VWler opens a new case, according to the motto, let’s try it, let’s ask at VW or look into the database. Does anyone have experience with hard-hitting shocks despite “functional” suspension in such a young car with only 70t km?