Wrong adverti*****t "just for adverti*****t"

Hi I went to spar Les Marais to buy the Huggies on promotion but Unathi refuse the supervisor to give me with the price we saw and worse of it he was so rude not acting like a manager 👿😞 with no apology or acknowledgement of mistake I'm very disappointed 😞 The pamphlet and their promotional ticket on shelve says the same thing that they are R176.99 per pack which scanned 270.59 at the till which Unathi spar representative refuse to give me and that price I saw them, told me that the price it's scanned is the price you pay the pamphlet it's just for adverti*****t. Which I don't understand why they advertise wrong information, how many customers bought without looking their till slips thinking they bought promotion. which they didn't even put any notice to the store that there was an error during printing or shows any apologies or acknowledgement of error.