Rear crossbars broken 2x !

Hello together, have a problem with my TT 132kw Quattro. I broke the lower crossbar about 3 months ago in the back right, which resulted in the rear wheel having folded in. But thanks to God I didn’t drive fast. No further consequential damage except that the drive shaft pulled itself out of the differential and oil loss. All 4 crossbars were replaced with original spare parts, in addition for another reason the left axle carrier. the day before yesterday the new crossbar is broken exactly in the same place again. Now there seems to be a reporting obligation for the damage at Audi!? It was also reported yesterday and apparently there is a special damage number what according to my workshop indicates that the Audi would probably take over all costs, it would probably be replaced again all 4 crossbars plus all bearings. Now my question to everyone, are you aware of similar damage, someone has had the same thing before!? The thing is that I don’t want to drive my car on my own anymore because I don’t have faith after 2x in 3 months a safety-relevant component is broken, who tells me it won’t happen again and then maybe I’m driving 220km/h on the highway!?!?!? Questions, opinions or suggestions on the topic!??! Thank you in advance and greeting Klaus