Thank you for the comments. Please
1. login our WSD ESD website https://www.esd.wsd.gov.hk/esd/preLogin.do?pageFlag=1 and use the self-service related to account matter, or
2. phone WSD hotline at 2824 5000 then press [1, 0, 0] at 8:45a.m. - 6:30p.m (Monday to Saturday) and contact our Operator .