I do have some personal experience with this.... and dealing with the support agency is probably not pleasant. They were, at one time, so ignorant, it was a joke. They could run a "report" on a Thursday and I could show up as "behind" on a payment when my employer transfers the payment on Friday. Didn't matter.... One year they ran it on a day like that and decided to flag me with the IRS in order to get that missed payment from any tax return. And it was a "once we submit that notice to the IRS, we can't undo it" !!No, the employer has to break it up and not pull over the percentage. Such a pain!