You must hold one of the following valid identity documents. No other person can book for you (you must come to buy):

The People's Republic of China - Permanent resident ID card (new or old ID card, no temporary ID card)

The Chinese People's Liberation Army - Military ID card, Clerical Officer ID card, Soldier ID card, Honorary Certificate for retired military officers, retirement certificate,  Retirement Certificate for Clerical Officers

The People's Armed Police Force – Police Officer ID card, Clerical Officer ID card, Soldier ID Card, retirement certificate, Retirement Certificate for Clerical Officers

HKSAR passport or Macau SAR passport
HK and Macau Re-entry Permit and the endorsement 
Taiwan ID card, Mainland Travel Permit for Taiwan Residents and the endorsement
Foreign citizens – passport and at least 6-month visa issued by People's Republic of China