Worst service EVER!

Absolutely disgusted with the service from this company. After waiting for longer than a month for my order that has already been paid for in FULL, I’m still waiting on my refund because they couldn’t find any stock from the suppliers. Why wasn’t that indicated on their website in the first place? Now I’m waiting on my refund, but no one is replying. I see numerous customers complaining about their customer service, wish I did my research before buying from them! Should I first complain on all social media platforms before I get assistant to get my own money back??