Only putting this out there in case anyone else has to deal with it: If you receive any calls from an unknown number, threatening to serve you, or someone you know, a summons regarding debt collection, hang up. The company is RH Group aka Rotech Holdings, and they are a fraudulent debt collection company, who are very pushy and rude, and they attempt to get you to pay a debt for an unnamed plaintiff via credit card over the phone. They will contact you, your family, friends, anyone you work for/with, and even your neighbors.
They usually leave a voicemail, telling you to call back to 877-917-9393, and leave a case number, if you don’t answer. From what I’ve seen, they only target people who have had issues with debt previously. They have an F on the Better Business Bureau’s website, and all the complaints back up what I said, in addition to any others if you google the number.