Third windscreen damage in one year – insurance threatens to throw out

Hello municipality, with my GP3 I pulled in the third stone blow with the subsequent crack of the windshield. I drive 25′ km a year commercially, the insurance was known this. Now the insurance (generali – so no low cost insurer) threatens me with the cancellation with the new damage report. Of course they have the right and other insurers also have this in their AGBs. But do you have such a behavior of the insurance already experienced already already because of a “lappy” windshield (with which I also still have SB)? My contributions still cover the damage height of all three disks so far – so I am still economically for them. And at all – to me the front disk of the P seems to be extremely sensitive to stone blow. Have you had similar experiences?