What can I do? My wages are being garnished I was not notified by my employer nor by the company doing the garnishing.

A wage garnishment comes about only following a court judgment. A court judgment comes about only as a result of a lawsuit. The Constitution requires that you be given notice and the opportunity to be heard prior to the entry of a court judgment against you. If you were not notified in any way, it may be possible to vacate the judgment. You will need to consult with an attorney who practices civil litigation in the jurisdiction in which you reside. Think carefully, however, about whether it is worth your time and money to hire an attorney to try to fight this. If you really do owe the money and do not have a bona fide defense, you will likely worsen your situation by spending money on legal fees.