It would be very difficult to answer your question, as you are asking if anyone has experience of this. But experience of what? You haven't given any details of the way in which the council have messed up your housing benefit, nor any details of the complaints you have made, or any reason you intend to sue a council department for defamation of character. All that can be gleaned from your question is that you expect to shortly appear in court with regard to an eviction order. I'm afraid that without some clear details it wouldn't be possible to answer your question. Sorry though about your predicament.