Yes do not use cryptomixer.io anymore. They have been reliable in the past but have started scamming recently. I have used them loads over the past and then scammed me yesterday for 0.18btc. After sending them the letter of guarantee they used the same excuse like they seem to be using with everyone else on here that I went on phishing site. I know for 100% fact it was the correct site, I'm always extra cautious with these things. I even have a screenshot of my browser with the exact site cryptomixer.io and the screen with the btc address I sent to while it was waiting for the btc to arrive. I always keep it open until I receive my btc and this time I received nothing. AVOID!!!