Disappointed with sale price refusal 15 December 2023

I recently bought something online, thinking I was getting a good deal. But then I got an email saying there would be delays because they were organising their warehouse. Later, I got another email saying they had cancelled my order. The things I wanted were still available, but now they were back to their normal price. Even though I gave them the product codes, they wouldn't give me the original sale price. It's annoying when a company changes their mind like that. If they don't want to sell things at a lower price, they should just say so straight away.