Using an intermediary (waasitah) to avoid military service
Question

                What is the ruling on using intermediaries? Can a person intercede to help me not serve in the army for an illness I have, which according to the law excludes me from military service, e.g. weak sight. Doctors may suggest I am fit to serve.
Praise be to Allah.
    If the system will indeed excuse you from going into the 
    army, then there is nothing wrong with seeking the help of someone who can 
    get you out of that. If the matter involves paying money, then it is subject 
    to further discussion: 

    1 – It is permissible for the intermediary to accept money if 
    it is not in the nature of his work to check who is fit for the army and who 
    may be excused. But if that is part of his job, then it is not permissible 
    for him, because that comes under the heading of bribes and haraam gifts to 
    workers. 

    2 – It is permissible for you to pay the money if you cannot 
    get your rights otherwise. If it is a haraam bribe, then the sin is on the 
    one who takes it only, and there is no blame on you, in sha Allaah. 

    See also the answer to question no.
    26801 and
    72268. 

    And Allaah knows best.