DAY LIGHT *******!!! DISGUSTED

i just came back (17/07/2015) from Edgars to buy slippers. when i got there, the price tag on the slippers was R99.95, so i got to the till and paid. So when i got to work i looked at my slip and i see that i was charged R109.95, i immediately called the store and spoke to the same cashier and she told me that its their system that did a price increase. I told her that its not my fault and why didnt she advice me when i paid for them. <br> <br> This is not fair and i really feel that this is a rip, what makes me even mad is that she didnt even bother to tell me that they have increased the slippers.<br> I will NEVER shop at their store, i am so disgusted.