Never ever make use of this company

I saw there adverse on Facebook they have webpage . They did a job by me installing vibracrete in 1 day. They have me verbally 6 month gaurantee .we told them wind is strong he said vibracrete is very strong it can withhold strong winds. He installed it on Thursday. Friday morning I phoned saying vibracrete is leaning. He promised he's coming Friday. Saturday morning I phoned him he said I'm coming Saturday because entire vibracrete collapsed 12.65 meters.acxorsimg to other building contractors it takes 4 days to install vibracrete because the poles must set first before you add slabs.he did everything in one day he refuses to come fix his mess. I have voice recordings and pictures what can I do I need help advice his cell NR ***. the people he used as testimonials is also ****.