Misleading advertising

<p>I saw the iPhone 7 advertised on istore website for R649 per month for 10gigs. I called MTN and changed to prepaid and went with my family to the istore in Cavendish Square Claremont Cape Town. They saw the advertised contract and called Head Office. I was told that it was a mistake. I believe istore needs to honor this contract as I went to get contract based on information on their website</p>