PATHETIC ONLINE SHOPPING EXPERIENCES

I ordered a Salton 5L air cooler online for R299 on 20/01/2021. I get an email yesterday to say that it was an error and the cannot honor the order due to the error, I now see the updated price which is R1499. What type of error is that? It's not my issue if they made a mistake they need need to take responsibility for their error and honor my order. This is the third issue I'm having with HiFi Corp online. I purchased a sewing machine from them in December 2020 and the sale price was R1299 a few weeks later I see the normal price is R1299. I took it back to the store to return. And last week Friday I wanted to purchase a deep freezer and the site kept giving me an error issue, upon chatting to a guy named Rob via the site chat services and he said that apparently there was no stock so I questioned why it was still on the site he said it was apparently in the process off being removed off the site. The freezer is still currently up on the site. They always got excuses for everything.