Worse service ever

I went to Cresta foshini on Saturday 16 December and had the best service ever, Sunday I went to Foshini Clearwater mall and had the worst service ever, they advertised top/vests, R99 each or R150 for 2, I decided to take 6 and 2 arm bands for R99, the person who helped me made me wait for over 15 min, Heaven knows what she is doing, I asked if everything is fine she says ja she is trying to get that price of R99, as I gave my card to pay , my stuff should be R150 x3 + R99, R549, the slip comes and she charged me R 849, I asked her for what she says the tops are R125 each, I said no its R150 for 2 she says no its not(calling me a ****) , she goes and check and says oh yes it is, but it does not say that on the system, sum guy comes and says its fine will give u a discount and charges me R90 each, I said no its R150 for 2, they both said the system does not say that, that is called false advertising, I eventually said give my money back, without thinking twice they gave my money back and I left after almost 30 minutes,, do u call that customer service ? worse service ever, stop advertising things and pay diff price when u get there, I will never buy there again, and im telling everybody what terrible service I got