According to the inquiry, there may be many reasons why the Education Bureau doesn't answer the phone, such as network failure, wrong number, shortage of staff, limited working hours and so on. If you want to contact the Education Bureau, you can try the following methods:

1. Call again another time to avoid rush hour or after work.

2. Check whether the number you dialed is correct, and whether there is an area code or the dialed number.

3. Send an email or fax to the Education Bureau, explain your question and contact information, and wait for their reply.

4. Go directly to the office of the Education Bureau for face-to-face consultation or complaint.

5. Call the mayor's hotline 12345 to reflect your problem and the situation of the Education Bureau, and ask them to urge the Education Bureau to improve its work.