Misleading store promotion

Misleading store promotion Hi I am appalled by the misleading promotion held at Markham at the Phoenix Plaza, there is a promotion that is currently on, which says "Purchase over R600 and pop a balloon, and my purchase was way over R600, when mentioned that I will be popping a balloon I was advised, its cash only andI have used my card, So my question was to the assistant and manager it does not say anything about cash or card on the promo, and its fair that I do pop the balloon for the promo, the manager insisted, "no cash only", which for a fact is misleading as there was no such notice on the promo, and I do have a video of the promo. I would appreciate if stores like Markham stop misleading us, as I am a huge supporter to the store.