Poor behavior

I was recently contacted by this business and spoke to Mr Chris Paterson saying they recently did business with us ,which no one i work with knew off. They just carried on with throwing threats and saying they will open cases against us and so forth. Mr Chris Paterson was extremely rude and said some very bad and hurtful things towards my personal life although he didn't know anything about me. I hope this behavior of Mr Chris Paterson does not affect anyone and please do not even think twice about doing any business with such people.