The license plate is Guangdong Z. Where is the word' Australia' behind the license plate?

Guangdong Z is followed by an Australian character, which is the license plate of Macao.

Guangdong province licensing bureau

Guangdong Province (Guangdong) Guangdong A Guangzhou, Guangdong B Shenzhen, Guangdong C Zhuhai, Guangdong D Shantou, Guangdong E Foshan, Guangdong F Shaoguan, Guangdong G Zhanjiang, Guangdong H Zhaoqing, Guangdong J Jiangmen, Guangdong K Maoming, Guangdong L Huizhou, Guangdong M Meizhou, Guangdong N Shanwei, Guangdong P Heyuan, Guangdong Q Yangjiang, Guangdong R Qingyuan, Guangdong S Dongguan, Guangdong T Zhongshan, Guangdong U Chaozhou, Guangdong V Jieyang.