False advertising

The SPAR @ Sediba Plaza, Hartbee****rt has a certain crisp brand on special, assorted flavours, R55 for 3, but they only have one (1) flavour in stock, the one that burns the living daylights out of you. I asked the store supervisor how that is possible and her reply was that is the way they received it from head office and that I must speak to the store manager.