Payment dragged for a very long time

Hi my name is Patrick Nolonolo Thanks again you had helped me with Capitec issue So now I got a problem with a company called Mocho Group It's a construction company they don't what to pay me I had engaged the DID Department I had being talking to a guy there I got his email we had being talking through emails, calls and whatsapp a lot I wonder I can forward all the conversations of the Contractor and that person from the department Thanks a lot I will here from you on what to send or do