and about OP's issue, how come they would just turn out to be a scam just having an issue with $200? hehe.
It has happend before to another user (But with 1
BTC)
Yuri Jhonny is correct. He visited our service, deposited BTC to our deposit address and our service did not give him chips nor vouchers. We are sorry for that. He received his chips after support intervention.
We are investigating what went wrong. We will update this post.
So it might actually be a real problem on Chipmixer's side. (and a recurring issue in that case, which doesn't look that good.)