Constant Harassment

I am harassed by Bornman Brink Attorneys constantly. They are unreasonable and truly difficult to deal with. Context: their client is pursuing damages for an accident that was caused by their own negligence. Now I get that they are on the side of their client. However, all they do is send letter of demand after letter of demand (via SMS and email). I've called their offices and sent a response via email explaining that the cause of the accident was that their client was driving on the wrong side of the road. They have never taken that into account, nor do they even provide a valid response to my call or email. I am just harassed. Over and over again... constantly being threatened with legal action for something that isn't my fault.