Bad service - Consumer Complaint for OK Furniture - Head Office

On wednesday i want in the store at our ceres branch wanted to buy the tv on sale.the sales person told me its fine i can go and fetch something when i came back 5minutes later they sold the tv to someone else..and the lady who was selling it told me the tv was already sold in the morning but the tv was still.on the floor and the people only made the payment the time i was in store.the then orderd one from another branch..when i called this morning they said the sale is over and the other branch sold it..nobody did inform me of any of this
Due to the fact that i normally buy at your branches and buy all the stuff cash im.
Bad services and i would like to get explanation on why such things has happend