№25539 
[Reply]
TL;DR: Some (usually government) agency has a legal order to garnish your account. This can become very expensive if left unaddressed.
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A lien, garnishment, judgment, or other legal order has been attached to your bank account.
Your bank will have the order on file. You can request a copy of it from the bank. I strongly encourage you to seek competent legal counsel to help you deal with this because, in my experience on the bank's side, these things tend to escalate quickly.
Most US banks charge fees on NAS-COAL. They can charge you for the paperwork, for the levy itself, and for any overdrafts the debits happen to create. The fees can be hefty or miniscule, but often add up in a hurry.
If left unaddressed, the fees can accrue penalties, and in some cases your ChexSystems
file will be updated to show that you may be an account risk. It will be hard to open accounts at other banks if that happens.