Is it permissible to use money donated to pay off the debt of another person, to pay off the debt of the donee himself?

If a woman's issue is resolved, there is no harm in her spending the money to pay off her debt, as long as those who gave charity intended it to pay off the debt of the needy. And if it is permissible for the agent distributing the charity to take from it for himself if he is poor, then it is permissible for someone who asked for it for himself [i.e., for the woman herself].