This is a personal desire, those type of spells never work out the way you want them to.. so many unseen variables, and for money of all things... that's like selling yourself to acquire what you desire.
Things like this come down to patience and understanding of the natural order, when the time is right, and if you believe enough in the gifts which the universe can give.... you will acquire your object.. but only when it is time to be given, and when it is given... you will understand why it is given.
Theres a saying, Nom yo ho renge kyo, if you ask the universe for your sax... NOT, the money, sorry caps, it may come to you, again....patience.
have compassion for the system, and it will work for you
give in, and so shall you receive in return