Quality Maters; Really!! Carport debacle

y don't have reliable contractors; got quote from Quality Maters (Yes that how they spelt it) off the Procompare site, not the best quality work, they did not have all the materials (Zinc sheets for roof) needed to complete carport; so asked if they could quote on clear corrugated roof as to let a little light through. costed a little to much for me, so asked them to complete the job with zinc, and that's were they changed their tune and blamed me; and I am still waiting on them to complete work.(3 weeks) Stupid me! I am trusting and paid them in full before completion. DON`T use them!! Getting someone else to complete the carport.