False advertising and Lack of respect and customer service

I have had the worse experience ever from the store in Claremont Cape Town. Manager - Miriam and store assistant - Amaarah. They were very nice when processing the deal. Called everyday because there is a deal to make. It's the after-service that shocked me to me core. Especially after my last call when Miriam, the store manager shouted at me and was very condescending, thinking that I do not policies and procedures of how retail stores work. If she bothered to speak to her sales person, she would know that I have been given the run around for 3 weeks. I purchased units during teh period when they had the cash back deal. Get cash back, when you sign up today. Today is now 3 weeks later. Miriam tells me that they never have cash in store and if they do, it does not amount the funds they need to give me, which then means they bank for that day and hope they get cash the next day. She then very rudely tells me, that I will just wait until she calls me and she doesn't know when that will be. It is not my issue if you do not have the funds. She also proceeds to tell me that in this day and age payments from customers are made via debit order, this brings me back to the question I asked, "why can you not EFT the funds to me since I have a debit order set up" this is false advertising and the fact that I am given the run around. Firstly Miriam, you absolutely lack customer service and youo forget that it is due to consumers that stores have business and all I feel like doing now is cancelling business with your company purely based on the lack of respect I received from you. amaarah could call me and pester me about a deal my partner wanted to take. What makes you think that I would recommend any person to do business with you after today.