Is A Seed Faith Offering Scriptural?

Is seed faith offering scriptural or is it man made doctrine to exploit believers? Well, let us take a look at what is going on in the church today. Many ministers of the gospel talk about seed faith offerings as the key to getting hundred-fold in return. In other words, a seed faith offering is money you give in order to open the windows of blessings. In addition, the more money you give, the more God will bless you. does this sound familiar?