Where to report a cybercrime?
Every country already has an agency for that, try to locate the office in your country, since the advent of the internet and cybercrime all countries have set up their own laws regarding cybercrime, like online libel, online scam.
What you say is true if the country has accepted and acknowledged crypto, in some developing countries there is still no one that recognizes and makes transactions legal, so it will certainly be difficult to do so. besides indeed your country has acknowledged and made legal transactions, it is clear that there will be a complaint place. you should go to your country forum and ask about it there.