Is there any community topic from them. I am not familiar with this mixer.
They were on the forum from 2016 until the ban.
https://bitcointalk.org/index.php?topic=1484009.0You don't remember the oldest mixer that was still operational despite other newer onces exiting or getting seized? They weren't advertising, but they did have a thread too, that was moved to the archival after the mixer ban took effect.
I think I read something about them going rogue too, or something like being linked to other wrong mixers. It's very likely OP might have got scammed
Scam accusations also appeared some time ago, but due to mixer censorship, that discussion went almost unnoticed. If I remember correctly, there were some accusations and connections with Yo**, who turned into an exit scam. However, all the information came from third-party forums, and it is difficult to confirm its accuracy.
Now I see that the mentioned mixer is blacklisted by Ethereum Phishing Detector, SEAL, ChainPatrol, and PhishFort. Usually, such warnings are removed upon the intervention of the site owner, but it was absent here.