bad service

Where do I even begin, the service from this company has been nothing short of playing in a septic tank To get the deal, he tells us 1 week from manufacture to install. but then argues when we asked a week later that its 3 weeks but we have the WatsApp's to prove it. 3 weeks on and they arrive to install and low and behold they have the measurements wrong, calls me to tells me this and says 1 or 2 days to rectify. 3 weeks on, calls me and sets a time and date to install, get my mom to take off work to come and open the house and wait for them to install , later on they cancelled, due to current site running late. following day set for 09h00, I have now had to take the time off as I have no one else to open the house and wait for them. 10h54 and finally arrive.