False adverti*****t and poor customer service

Went to checkers hyper kolonade to buy an explorer that was on special as combined was assisted by a lady name Julia. Asked her if they have stock and she said yes and said I must pay she going to get it for me. I paid when she came back the network connection is not available and they promised to call me yesterday which they did not. Spoke to her now she tells me that the person dealing with them was not in even today and they not sure when they getting stock. My problem is why make promotion with things that are out of stock. Asked for refund she tells me checkers does not have that kind of money in store and hang up the phone. So I'm on my way to the store please get my money ready so that I can go buy elsewhere and teach ur stuff manner and proper customer services not just how to push sales