They increased the payment because, based upon the financial information you provided, they believe he can afford larger payments.

If this was a decision by the parole officer alone, you may be able to get the court to review the decision. If it was the court, I expect the judge will want to see a significant change in his financial situation before revisiting the matter.

We don't know how this came about. If you want specific advice, discuss the details of the case with a criminal defense lawyer.