False Advertising

I went to the store to take out an additional contract on one of the advertised deals in their in-store magazine. I was told to come back two days later as the deal would be loaded on the system by then. On my return two days later after spending two hours waiting I was told once again to come the following day. As an existing Telkom customer I am extremely irate and cancelled the new deal. Why advertise deals in your brochure if it is not available in store?