Martware Sealing

Had Dmitry come and perform sealing on driveway and patio out back as well as relevel a section of interlock on driveway measuring about 8' X 10'.Called him back because driveway had discoloured with white patches after his sealing process and ants and weeds had come through what he had sealed only two weeks after he performed work. He came back to address discoloured driveway but no change, driveway still has white patches on it. My mother called and spoke to him about weeds coming through so soon and he said he would be back but guess what...no show. Price was attractive but service and quality are extremely poor. His relevel work now also needs to be addressed as stones that he releveled are now sinking less than 6 months later.