Wrong pricing

If i could give minus numbers of stars i would!!!! Bought a fridge on a promotional price.Paid the deposit according to that price…come to the point of collection and paying the rest,they charged me more…according to a “NEW” promo price.And the manager was so unhelpful,just stood there doing nothing!!!Was ridiculous!!!Will NEVER buy ANYTHING from them again!!!

For reference it was House & Home Centurion mall