Unhappy costumer

I bought 3items online at your store on the 27 November 2021the order was successful after few days order was cancelled without notifying me when I question I’m told you’re out of stock you could have returned my money and I would have bought those items at other stores since it was not only your store that has special then now everything is back to normal price and you will return my money within 8days noooo that’s not fair at all