Speak with an attorney--you may be being extorted illegally here. Parol offices do not decide how much someone should pay for restitution; that is something the courts do, as part of your sentencing or settlement. And no one can simply take a tax refund without a court order, or change the terms of restitution unilterally. Parole officers enforce parole terms--they don't make them. This may be a case where the parole office is trying to pocket your money for himself. If at all possible, speak with a criminal defense attorney; if you can't find one, try legal aid, or try local law schools (which sometimes offer "clinics" to help people in trouble with the criminal system who don't have other options) or try contacting your state bar association--they may be able to refer you to an attorney who will represent you "pro bono"; for free.