In the process of searching for her son for more than 20 years, Lai Wai-ling has received thousands of letters from people across China claiming to be her son or to have her son, and asking for money and Hong Kong residency status.

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In the process of searching for her son for more than 20 years, Lai Wai-ling has received thousands of letters from people across China claiming to be her son or to have her son, and asking for money and Hong Kong residency status.