**** pricing online to lure clients

I went online to buy a vase at Mr Price Home. Sku: *** which is a drop bottle vase prices R39.99 i put 4 in my basket. Upon wanting to checkout the vase is no longer R39.99 but R79.99. Is Mr Price doing **** advertising or is this a **** to lure clients to purchase than make them pay more than the original amount. Is this even fair or ethical for Mr Price Home to do such to clients. I took screen shot of this so I can email it to you. Is this considered as **** advertising. What happened to the price you see is the price you pay?