Yeah the "good luck" at the end of voice mail messages was definitely a gimmick of Il-Legal Mediation Mal-Practice; I have two messages I saved from them with that being thrown in at the end. Also the "case being filed" against you was something LMP used; the first woman that contacted me from there used the exact same verbiage, trying to make it sound like an attorney's office.
I don't know if I've ever heard of the "your SSN and DL has been red flagged" before. I would ask them exactly what that means, while taping the phone call, when you call them back. Be sure to check your state's laws regarding taping phone calls.
Whether or not this is just another version of Il-Legal Mediation Mal-Practice operating under a shiny new wrapper is irrelevant. H & P Capital has come out of the gates heavily violating the fdcpa! You need to file complaints against them with your state's Attorney General's office, the Florida Attorney General's office, and the Federal Trade Commission.
If you click on the link I posted above with "H&P" at the end of the title, you will find their mailing address and phone number (no fax number yet, I'll keep looking) on that document. In addition to filing complaints with the above entities, you should also send a debt validation/limited cease and desist letter to these bozo's! Be sure to send it certified mail/return receipt requested. Once they sign for this letter, if they continue to harass you (and I'll bet my left leg they probably will) then you can sue them for violation of the FDCPA.
Lets get these jokers closed down faster than it took to shut down Il-Legal Mediation Mal-Practice!