T-rex engineering and maintenance disaster

So disappointed. All that was needed was a small roof and a chimney for my braai (barbecue). What a disaster. I really thought a so called engineering and maintenance company would be able to build a chimney, but I was so wrong. It's an absolute mess, amateur at best. Now i have paid them... they refuse to return any of my messages. I would not recommend using t-rex engineering and maintenance for any building work, clearly they have NO clue!