Dyson's Website Increases Out of Stock Product Price

I wanted to buy a Dyson product that wasn't available on their website, so I went to the Zorlu Center Dyson sales point to buy it. But I was told I should buy it from their website. After putting in the order online, I got a message that the product was out of stock and they would let me know when it was back in stock. Three days later, I got a message saying that the product was back in stock, but that the price had gone up by 1,500 TL. I felt like I was a victim of fake advertising, and I was upset that Dyson wasn't honest with me. I want Dyson to fix this problem and make things right for their users.