Extremely poor customer service and inflated prices

I phoned Sump more than 2 weeks ago asking for a windscreen for my Mazda. I spoke to Reggie and he said it would’ve there within 2 days. After 3 days I phoned him again and he said no he didn’t order it , I have to come in and do a special order!!! What service is this. My daughter then went the Saturday and ordered the windscreen from Johannes who told her that it will be in onMonday. I took a day off on Friday to have the windscreen fitted. When I got to Sump on Friday I was told they don’t have stock and need to order!! I was quoted by Reggie R1250 fitted. Then I was quoted by Johannes R1285 fitted. This morning I was given a “ special” price of R1435 fitted!!! I was told that the windscreen will be there at 11am and Willem would phone me. I phoned Willem at 11:27 and he said the windscreen is not there he would phone me back just now. It’s now 12:41 and I and my wife had to phone twice already and still no answer on the windscreen!! What poor service from a number of people and then I still get conned with my money !!