What should a woman do who received an extra item she did not order, and which is of high value, knowing that her superiors will not return it to its owners if she gives it back to them, and is it permissible for her to sell it and donate its price?

The tree-like selling system that involves giving commissions to a customer in exchange for bringing in other customers is impermissible. This is because it involves taking a commission without real effort and aims to obtain money in exchange for soliciting new customers, which makes it a form of maysir (gambling/unlawful gain).

If the woman mentioned has acquired goods that are not rightfully hers, she must return them to their owners to the best of her ability. If she cannot identify the owners and she believes that her superiors will not return them, it is impermissible for her to return them to her superiors. Instead, she should give them away in charity on behalf of their owners, while giving the owners the option, should she find them, to choose between the reward of the charity or the return of the value of the goods.