We were ****** and **** by a cashier by false promoting and changing the customers an extra cash.your assistant will be highly appreciated

I was made to buy something which i don't need,the cashier her name is Busi she told me and my husband that the sneakers that we are buying they goes with a spray, which she ****,it was not on promotion we paid an extra amount for the sneakers,when we returned the spray that when the one shop told us that we've been ****** by mamelodi denlyn the factory sneaker.we used our petrol to go the and asked for the manager ,he came and said the sinior manager will call us,cos he acknowledge that we were **** about the promotion, never apologize and all we wanted was our pretol Money and return their spray cos won't have any use for the spray.we stay in Refilwe cullinan far east,we drove from Refilwe to support them and we were treated badly,pls assist