Never use Tunnles Direct for Greenhouse tunnels

I had a greenhouse installed by Andre from Tunnels direct. 3 months later the tunnel collapsed. I paid him to go and fix it again. He fixed it and gave a two year guarantee. Three weeks later the tunnel collapsed again. Now they do not want to come out and fix it. I have never seen such bad workmanship and work ethics. Don't ever use them. they will take you money and give poor work and guarantees.