Registrant Document Type. Please refer to the possible values below:
If the registrant is an individual:
HKID - Hong Kong Identity Number
OTHID - Other's Country Identity Number
PASSNO - Passport No.
BIRTHCERT - Birth Certificate
OTHIDV - Others Individual Document
BR - Business Registration Certificate
CI - Certificate of Incorporation
CRS - Certificate of Registration of a School
HKSARG - Hong Kong Special Administrative Region Government Department
HKORDINANCE - Ordinance of Hong Kong
OTHORG - Others Organization Document