You can't violate Act 355. 355 just modified the other Wisconsin statutes. I'm not seeing anything in the various sections (71.935 or 812.405) that says anything like what you're asserting.
Even if they applied the fees in the wrong order, you're not getting of probation until these are paid and you will pay probation maintenance until you are off. You certainly can push for an accounting of how the money remitted was applied.