CLICKS MISLEADING PRICES

I went to Click's Featherbrooke village around 5pm, in a rush after a long day to quickly grab some baby food & few essentials. I usually check the receipt at the before I leave the store but today I was exhausted. The ORAL B 3D white toothbrush heads that were clearly priced R185.00, however going through my receipt when I got home I was actually charged R212.00. If the store only updates the machines at the till but not the price tags in the isles then I demand to be charged on what I see because my decision to purchase is driven by the price. This kind of practice is NOT acceptable, have someone at the store double check if what's on the machine and isles agree. I'd like to be refunded ASAP please.