left card at my door Harold card was old and dirty

London Associates Legal Services "Harold" keeps leaving card at my old house. Lady who lives there calls them and they tell her that somone is sueing me and tells them to get me to call them. I think that they are crazy why would anyone be after me I have nothing and I owe nothing so someone need to make these a****** STOP TELLING LIES AND GIVING OUT INFORMATION THAT IS ABOUT SOMEONE ELSE TO JUST ANYONE WHO PICKS UP AND CALLS THEM!!!!