Pathetic workmanship

We recently decided to redo the Tar on our driveway and got quotations from a few companies. Afro Asphalt offered us something we wanted, they promised that the Tar would be thicker and it would be done within 3 days. We have regretted choosing them everyday since they say "the job was conplete" we ended up wasting so much of the Tar that we purchased as it got cold and they couldn't use it. My driveway is extremely untidy and there are about 11 patches where you can only see stones as the Tar was so thin, it has already worn out. We've contacted the company on a few occasions, even sending pictures. After a week if them not coming back as requested... things got ugly and now they don't even respond and Noone has come out to even view the work, even after we tried to show them with pictures.