China Bank's 95566 manual service is too busy to dial in. The manual service time of 95566 China Bank is 24 hours, so whenever you call the service hotline of China Bank, you can directly switch to manual service.
It may be that the telephone system is busy or abnormal. I suggest calling again at another time. It may also be that the personal phone signal is broken and I can't get through, so I will call on my mobile phone or other phones.