False advertising

On the 31 March 2021 I received a marketing email which I receive every morning from GAME, they advertised Brookes OROS 5L, 3 for R170 which is on promotion, the calculations on the add was correct so it seemed legit, I then went to Game the Glen shopping center and when i arrived at the till point, the lady advised that it is not on promotion but the add said the promotion started on the 31 March 2021 to the 07 April 2021. She then called someone and the other lady said the promotion is online only, the manager then came and said the promotion is for 2 Oros for R170, I showed him the email I received from Game and he advised that he knows nothing about it. This is not the first or second time that this has happened, I let it go the other times but this just put the cherry on top, plus i purchased sunlight liquid which was on promotion just to also find out that the prices in the store is not correct, I have had it with Game, ***** took place on my Game account just after I made a new card, I used to love shopping at Game but they just broke that trust and will no more be shopping at Game.