You can communicate with Hangzhou Cecilia Han Education to learn more about their refund policy and specific operation process, and negotiate the refund.
According to the Contract Law of People's Republic of China (PRC), both parties can terminate the contract through consultation and return the deposit. If the consultation with Hangzhou Cecilia Han Education fails to reach an agreement on the refund, you can choose to bring a lawsuit to the court and ask the court to order the institution to refund the deposit, and you can ask it to compensate for the liquidated damages.