Suspension gear

Sorry I didn't take the name that seriously. Please excuse this.
The problem still exists as described, and thanks for the previous tip !

I have a problem with my chassis and I'm totally devastated!!
I got a 4.2-er in December and found out the feathers were broken in front. So so that this becomes reasonably reasonable, I said, a new chassis is better than just replacing the springs. I was recommended to use the Koni yellow and the H&R springs with a 35mm lowering. Briefly thought and decided, let it be done. When the rear dampers were installed, it was established that they had to be shortened by 2cm (because otherwise the spring would not sit on tension). Since it was a workshop, I naturally believed it.
My problem now: he's hanging on his ass. So I'm back. They packed me a rubber spring limiter. After 3 weeks they are totally pressed together and 2 on each side have said goodbye to the thread of the push-top. Is that normal???? Monday I have another appointment at the workshop. Can someone please help me with that?

Greeting Andreas