Arrow Financial Services

For almost 2 years my husbands paychecks have been garnished from numerous attorneys claiming that they are collecting for Arrow Financial Services--we don't recall ever having any loan or whatever with them--somehow they got a court order to collect and do this--but we don't have a clue how much they are owed and under what real name--so far they have collected over 4500 dollars--last paycheck they took out a little over 30 percent of his pay--we are going out of our mind--what can we do?? we had no warning of this from his employment--USPS-what can we do???