Misleading advertising and bad service city

Today I was at Game stores in greenacres to purchase a cellphone. On display it's advertised as R1899, when I get to the till I am told that the phone is R1999, something which I was not advised by the sales consultant on the floor. The change in price is due to the fact that the cellphone for R1999 has a dual SIM, again this is something that I was not told. On top of the misleading advertising I get referred to a lady by the name of Rochinda who was anything but pleasant. I couldn't get a word in edgeways. I kept telling her to listen to me! I am highly dissatisfied!!!