Is monero-mixer.com a scam? Is there anything I can do to get my monero back?

So I used [monero-mixer.com](https://monero-mixer.com/) to mix some moneros, because well I wasn't thinking much while looking for a mixer. And also this one has a PGP signature on the transaction page. It has been 30 hours now, 851 confirmations on the transaction ID, but their site still says " Status: Waiting for Payment Xmr... " Sent an email earlier today, still no response. I'm new ish to cryptocurrencies, and I'm very well aware that I probably just got scammed. What do you guys think? Is there anything I can do?