Delivery and no stock

I purchased a home theater on the 26t january 2018 at Game Clear water mall with the promise there is only stock at the warehouse so delivery will be 5th Feb. Since then i had been calling for feedback. Always been told there is no stock. No one gets back to you. I asked for the store manager who also kept promising then says the best he can do for being sorry is giving R200 back. Then says i can ask for refund.

I went today 14th Feb as he did not call me. He then said theres an issue with the store. He is now promising me by end of week. My thing is they should have told me there is no stock at all. I could have bought from another store. They never get back to me. Another store could have got a purchase. They chose to either lie or give inaccurate info then do not get back when their delivery is late and then say all they can give back is R200 or refund. Refund will not help when I am at a loss...waiting and no product. And now if no product i jusy get a refund after their promise. This not right...consumers have rights.