Provide legal 'Situation Statement' for virtual currency trading ➕ evidence ➕ evidence of fulfilling the obligation of fund audit = Good faith acquisition = Unlock card

A大神 asked:
What should I do? I sold about 7000 yuan worth of u, and after I transferred the coins, the receiving card was immediately frozen, and the police also called. How should I resolve this?
(If this is true, how can it be resolved?
If anyone understands, please share, so we can avoid pitfalls together.)