Poor customer service after incorrect pricing

I attempted to purchase a 180 X 280 grey and white outdoor rug clearly marked in 2 places at R2499. The sales assistant entered the item on the computer and then called the manager and they had a discussion for a few minutes, during which I heard the manager ask the sales assistant if I was purchasing anything else. They then informed me that I could not have the carpet at the price. I didn't even get told what the price was, until I asked, and there was no apology, or honouring the marked price, or offer of any discount. Very poor customer service!