Modern day slavery

"Sara is an 18 year old woman from Lusaka, Zambia. Her uncle David, lives in Cape Town, South Africa, but occasionally comes home. On one of his visits, Uncle David tells Sara that there are good restaurant jobs in Cape Town for young women. He says that if she come to Cape Town with him, he will help her find a good job so that she can earn money to send home to her family. Sara agrees to South Africa, but when they arrive in Cape Town, he takes away her ID documents, including her passport. Uncle David tells Sara that she must pay for all of their living expenses by working as a prostitute. Sara is very afraid, but when she refuses, he threatens to turn her over to the police as an illegal immigrant. Eventually, after being threatened and beaten, Sara agrees to work as a prostitute for her uncle."