Slavery exists today as it has existed in the past. Slavery exists in Western countries as well as Eastern countries. In Mauritania there is still a pre-modern system of slavery, with children being born into slavery. Those that campaign against it often risk their lives. In Pakistan children are enslaved, or at least indentured, which is virtually the same, in the carpet making business. The children that have campaigned against it have been killed. In Afghanistan children as young as three work long hours in brick kilns carrying bricks. In India, children work in the mica mines. In Africa, children work in mines also. In the Gulf, kidnapped boys are enslaved to work as camel jockeys. They are very often molested by their owners. There is a sad story of a boy from Pakistan who was sold as a camel jockey by his father who wanted the money for alcohol. Maids from the Philippines have their passports confiscated. Today, freeing a slave is not going to be as simple as making a credit card payment. It would mean contacting organisations that campaign against slavery, or else approaching actual business people who have control over their enslaved workers and offering to actually pay for one their slaves so that you can set that person free. Some people do that. It can be ethically controversial because it may imply a perpetuation of the slave trade, but maybe on these occasions the actual liberation of a child from a life of slavery, beatings and molestations is more important.