My Paychecks Are Being Garnished For Child Support When I Have No Children

Location: Illinois, USA

Apologize in advance if this is the wrong subreddit for this.

Today I got paid early morning and after checking my pay stub I noticed 8% of my pay had been subtracted for garnishments. Under garnishments it reads ‘Support 1’ and I was immediately concerned and confused. I checked my past pay statements but none of them have been garnished except this one. At the end of my shift I contacted HR and questioned why this was happening. She asked if I had any children and I said none. After some digging around she found a case for child support that my social security is in. I am still in possession of my social security card so not sure where that information could of been leaked. The name of the guy is similar to mine but not 100% the same. Both our first and last name is the same but different middle name initials and he has two last names in the document. The child and obligee’s names are people I have never met or heard of. HR gave me a number for the official Illinois HFS Division of Child Support Services (DCSS) customer service to call. After calling the gave me an email where im supposed to send a bunch of my information, my employer information, and proof of my pay being garnished and the lady on the phone told me it would take some time to process and to not call back for 6 weeks. I asked if they would continue to take my money in my paychecks and she couldn’t get me a straight answer. I emailed them with everything I was asked and now im just waiting. This all happened today and I am now I just can’t relax. How does this even happen? Is it fraud or a mistake? How can they just start taking money from me without any verification as to whether the child is mine? Am I stuck having to wait while my next couple of paychecks continue to be garnished or is there something else I can do?