What should I do if there's no answer to my question?
As there are many detailed questions that might not be covered by the "Taiwan CDC" chatbot. There are several official websites that you could find your answers:
Taiwan CDC: https://www.cdc.gov.tw/En
Ministry of Health and Welfare: https://www.mohw.gov.tw/mp-2.html
National Health Insurance Administration: https://www.nhi.gov.tw/english/
Ministry of Foreign Affairs: https://www.mofa.gov.tw/en/default.html
Ministry of Transportation and Communications: https://www.motc.gov.tw/en/index.jsp
Mainland Affairs Council: https://www.mac.gov.tw/en/