Checkers silverlakes: worst client service and wrong pricing!!!

why are the staff so unfriendly in the stores? If you ask them something product related they look at you as if you from mars and then they will mumble something and walk away... I have to start keeping track on the prices, as when its time to pay the amount is always R100-150 more...the reason: the stock on the shelves are marked down but when you pay it does not reflect...and then i am not even talking about the stock that just don't have a price...are those for free??? Start jacking up your store...i will never recommend anyone to this store!