JPM Coin platform freezes accounts and induces to keep deposit money for unfreezing

Recently, JPM Coin has frozen the legal currency account by claiming the transaction amount involves the circulation of non-performing assets, and asked to enter 50% of the frozen amount of the exclusive address provided by the customer service for review. After submitting the required ID card, bank flow, and the unfreeze fee, it is required to submit another 20% of the amount for further review. I asked if there are any additional conditions and when the review is completed by email, and the address jpmc2c@gmail.com sent an explanation, saying that the review will be completed within 24 hours and there are no additional conditions. If the amount involves the circulation of non-performing assets, and the relevant bank accounts should frozen by the police. The platform has no right to freeze or even request payment! This behavior is illegal!!!!