Misinforming and rudely treated

Bad Service rudely treated by the store mananger her name is Puseletso . Yesterday i went to Pep Home in Maponya mall i happened to see a small portable USB speaker i found Puseletso she was busy packing in one of the shelf i asked her how much is the speaker she just gave to ask the cashier to check the prize which i did take the speaker when i got to the cashier she scanned the speaker but she couldnt see how much is the speaker then i noticed that the speaker has price stick of R29.99 but she removed the price tag infront of me and told me that its R70.00 but i refused to pay that price because the sticker said R29.99 and i told her i cant pay R70.00 and it was not my fault that it was incorrectly priced . She called Puseletso (store Manager ) who happened to be near by but she wouldnt she rudely yelled and said i must take it with the price of R70.00 or else i should leave her shop and everyone was watching i felt disgusted with her behaviour and i promised myself i would never set my foot at any pepstore again. Mind you me i wanted to send a gift to my cousin in Eastern Cape but i rather use another Service provider and im going to stop my family to shop at Pep stores altogether