Hi,
Try to get more info on PrivCoin.
There is a topic
here. Read carefully, looks like there was a complaint about the service, but the company itself responded and it seems many users have been satisfied with this service.
I confess I don't know much about them, but it's probably worth a look.
Yes, I've already visit the site and do a bit of research about that. The bitcoin mixer in the privcoin and others are working but in Ethereum it seems to have a problem
![Huh](https://bitcointalk.org/Smileys/default/huh.gif)
but anyways thank you for your reply.