Well, I think some people here have a wrong idea about how such an insurance works. Two building damages in one year will of course trigger corresponding mechanisms. This is not only the case with RuV, every building insurance would have canceled you. It is not a god-given right to always be insured for everything, this is only anchored in the mind of the average German. If the risk objectively worsens, cancellation will be made if possible, it's that simple. And yes, it is not wise at all to report smaller damages that you can also cover yourself. This applies not only to buildings, but also to personal liability insurance, household contents insurance, etc. In this case, I wouldn’t necessarily call them small damages, but of course it was a mistake to involve your own building insurance in liability damages caused by external parties.