Shoddy, Unfinished Job done on our Garage Roof

Johan van Rensberg, of Blaauberg Contractors was recommended to us by our neighborhood Whattsapp group, as a reliable and efficient roofer. R14 500 paid for 2 days work on our garage roof, which was carried out by one of his workers, during the summer of 2019. Around April 2020 it rained and we noticed our garage roof was leaking! My husband contacted Johan, also known as "Pieter" who eventually rep**** by Whattsapp. He said he was no longer in Cape Town, and many people owed him money, [not sure what this had to do with us?] and there was nothing he could do. Beware of this man and this company! Totally shoddy, unfinished job done, and nothing we can do about it. Please share and beware.