A relentless scam artist collection agency that uses automated dialers and intimidation tactics to harrass people that either:
A) no longer owe any money.
B) the statutes of limitations have long since expired on debts.
C) no longer live at the number or address they are calling.

In any of the above cases. Do not give them your info. Do not send them any money. Tell them to get stuffed! Report them to your local consumer protection agency, BBB and police.

Added them to my call blocker app and all mail they send me gets returned to sender - refused by addressee so that they get billed double postage.