I would avoid using anti-privacy currency exchangers. Their privacy policy essentially reveals they treat bitcoin as non-fungible.
It's funny that you signed up to use openchange.cash but did not read their ToS and AML policy that were right there before you confirmed
What's even funnier is that you have no idea what you're talking about. There's nothing in their policy which prevents someone from using mixed funds. All they say is that they disapprove "suspicious" transactions, whatever the hell that means:
Openchange.me tracks suspicious transactions of the clients and transactions executed under nonstandard conditions. Openchange.me performs its action on the base of AML FATF recommendations.
Openchange.me is committed to regularly update its electronic system for inspection of suspicious transactions and for verification of client identification records, in accordance with any new regulations as they are promulgated, as well as providing training for its employees on enhancements to anti-money laundering procedures that may be required by new regulations.
Chipmixer is for coin laundry.
ChipMixer exists to protect your privacy. Thanks.
The funds have an AML score of 94.89999999999999 according to my system. It is clearly 100% money laundering and they had all the right to take your funds if they have any kind of AML policy.
Wanna share us how you calculate money-laundering score according to the chain?