Suspicion of money laundering, of course, frequent money transfer activities will be scrutinized by the head office bank, then report suspicious transactions to the state bank, and then freeze the account for investigation.

I recently started playing this, mainly selling dollars related to Techcombank. Yesterday, my bank account was locked, and today the bank sent a notice requesting me to go to the bank to work on the transaction issue. What does this mean for everyone? Please explain it to me, and what do I need to do?