Hey! We saw the mention of Atomic. However the topic starter issue was NOT related directly to our company. As we see, he used pretty other service and strictly VIOLATED their AML/KYC policy by providing FAKE documents twice. Instead of legal investigation, he started to chase company anonymously from various FAKE accounts. Seems to be pretty clear the only way to resolve the dispute is to identify the customer, prove the source of funds and complete legal investigation.
here is some INVESTIGATION from the other side
https://medium.com/@arennathan9/changenow-scam-or-review-how-ni23457-blackmails-the-exchange-978c483ef81a All good in the hood but i think this line went to far:

And also this is clear enough to avoid you with any significant amount:

In other words, spread your sells or dont use those centralize crappy services.