Salam
*Jins Allah has put a restriction in our eye from seeing jins
*If someone claims to see a jin its because jins can appear in many form (cats, dogs, snakes even humans)
*It is haraam to speak or try to communicate with a jinn
*Only magicians call upon the jin, and the reason they do it is because they want to cause harm to other people
*Some people do it for wealth and becoming famous, but that requires them to commit shirk and offer forms of worship to the jin such as (using blood to write verses of the quran, or to say this jin is god etc)
My advice to you, is research about jins. But understand that there are good jins and bad jinns, but IT IS SHIRK TO ASK THEM FOR HELP. Help comes only from ALLAH and him only.
Hope that helps insha allah