Promotions are deceiving

I am always receiving mails as i have a savings card with checkers and today for the first time ever after receiving the email i was told that the promo applies to JHB stores not KZN stores Firstly every time i went into the store after receiving the savings mail it always app**** but today it never. I made a special trip for the Maggie 2 minute noodles 3 for R57,Secondly if I'm in Durban why am i receiving mails for JHB stores. I then went online and searched Maggie 2 minute noodles checkers and the promo came up with no specification that its JHB stores...Really not impressed