Friends, my mother accidentally entered a wrong number at the CCB ATM to send money, and then mistakenly transferred 30,000 yuan to someone else, and then found the mobile phone number of this account through the bank counter and called

Friends, my mother accidentally entered a wrong number in the CCB ATM remittance, and then mistakenly transferred to someone else 30,000 yuan, and then found the mobile phone number of this account through the bank counter, called the opposite side of the reception to hear about the money and hung up the phone to block us, went to the police and said that this is not a criminal case can not be filed, can only go to the court to prosecute him. But now that the third court has not opened the door for a long time, can this money be recovered? Or is there any good way to catch up? Please give me some advice.