Bad attitude and lack of delivery- Dissapointing

During late October 2014 we ordered National Gauteng Suppliers to install a carport at our home. We paid them in full as per their invoice and their Johan began installation. He did not complete the job and promised to come back within 2 weeks to complete. We struggled for 4 months to get them to come back and eventually Johan called round in early March 2015 to supposedly complete what they never did. To our further disappointment and frustration, Johan worked on one or two things, and also made a rather arrogant statement to my wife when she voiced our dissatisfaction in their service, and proceeded to leave again without completeing the job. Since then we have phoned and emailed National Gauteng Suppliers offices at least 10 times to ask when they will complete the job. The owner Vanessa is blatantly avoiding our calls so we would like to know who else will take accountability if she wont?<br> <br> Following was never completed by Johan in November 2014. <br> 1. Bending and welding to the tops of the 4 uprights.<br> 2. Drilling of holes to allow water to drain out at the base of the 4 uprights.<br> 3. Fitting of the gutter and down pipe <br> 4. Straightening of the left back upright