selling broken goods with excuses

so i bought a lawnmower from game at mall at reds. it was marked at r1695 on the stand. so they went downstairs to get me a new one and 20 minutes later they came up saying they don't have one as they are out of stock, however i can have the one on display, which i took. i came home, and the next day my garden service assembled it and saw that it was faulty. i took it back to the store and they were very rude, while saying that there is nothing they can do, and that they gave me a discount on the demo. <br> <br> how could they have given me a discount???? i paid the full marked price of r1695 and for a demo not even for a new 1????<br> <br> utter *******, the salesman even mislead us into thinking he is the manager, it was only after we phoned head office that we were furnished about him not being a manger.