Out of stock item

Hi everyone. I recently ordered the new Clio eyeshadow palette in crystal paw (around 2 weeks ago). It said the stock would be fulfilled in 21 days. However now the website says it’s no longer available?!? It’s a very popular item so I don’t see why they wouldn’t bring it back in stock. Has anyone have any experience with this? I won’t cancel my order if they’ll bring back the item but I also don’t really know if they will. Any advice?