Flooring Guru - project seriously slow and not well managed

We got a quote from Flooring Guru in November 2017 to lay a cement screed on our verandah floor in Cape Town. They sent out a rep, who chatted about our needs ( including finding a way to make a cover for a manhole cover), and all seemed well. Quote came quickly, we accepted and paid a deposit...and then things slowed down. On the quote the job was listed as taking two weeks, including days for prep and drying days in between. I'm writing this review in late February 2018 ( almost three months later), and the job is still unfinished. I'm frankly at my wits end. The main problem appears to be that no one is project managing - a different team comes for different elements; often they haven't brought the right materials or tools with them so they do half the job, then return to complete it but it has ( for example) dried unevenly because they only did half the job the day ( or sometimes week and a half) before so they needed to re-do. In the end we made the man hole cover ourselves, even though we were quoted on it and paid for it, and they then covered it with screed. The first screed cracked in a number of places and they forgot to make it non-slip, (even though we'd paid for that...) . After waiting WEEKS for the colour to be mixed and to approve a sample, in the end when the guys came to do the non-slip, they just re-mixed the colour on site, without any specs, and it came out entirely different to the sample we'd approved. Everyone who you deal with is perfectly pleasant and professional - but it just seems they can't get the job done, as no one is managing it from the centre. We're now 3 months in and it seems no end in site. I would NEVER employ this company again.