Just for follow up, I spam called them back until I got someone that didn't hang up on me. He couldn't find my "case number" and said they must have called me by mistake. When I inquired about the company he worked for it seemed like he was making it up on the fly. When I was explaining all the instances of being put on hold and having calls ended he stated that they had a high number of calls and it was causing them to end early.
I finished the conversation by stating this was highly unprofessional and I viewed this "company" as being a scam. At this point he hung up.
Long story short, ignore all calls from this phone number.
Called today. Caller ID says this number is from South Dakota. We live in PA. Said they were calling because a member of the family was getting ready to be served, and something about needing to call back otherwise all legal rights would be waived once served. Part of the message was a live woman and part was a pre recorded message.
Pretty sure it's a scam or bill collector trying to scare people.