Company charged for decking that was never agreed on or installed

Be very careful – we got scammed by this company. Gideon added on an extra portion of deck that was not agreed upon – about 8 square metres – and then after we pointed this out to him and insisted that he keep to the agreed plan he refused to work with us or adjust his invoice and charged us extra anyways, and then threatened us when we insisted on paying for what was actually built.