Unprofessional "legal practioner!"

I Dealt with a gentleman who claims to representing my ex gf in a legal matter,he was very unprofessional,did introduce himself in at all just started saying I have to work via him if I want to see my children when I asked for his name and firm name he totally ignored my question.According to my knowledge a legal practioner should state his name,firm name and are of expertise he did none,but expected me to listen to him his cell no is 064967 2608 and the profile status said my legal partners.The only reason I could think why he wouldn't divulge such crucial info is coz he's not really representing the person and knows he might get into trouble if he's found to be dishonest he even spelled the person who he's supposed to be representing name wrong,it's a big shame and total embarrassment I blocked him on what's app and didn't even bother to give me a call such a total disgrace!!!!