My Cash Now 1-800-398-22741-844-572-6959 call to threat me saying they are with District Attorney about to take me to court Internet

I got a loan a long time ago, I was paying on it for a while seemed like it was endless, I lost my job and I was unable to pay, then I received a call today from a suspicious person that said what was my address because they would serve me court papers or I can settle this out of court, then they transfer me to another extension I said I  do not have the money now but I will pay, then he said I will contact the district attorney so you can settle this out of court but I would need a debit card now, I gave him my card and promised to pay by February 28th, then he said you better pay if not we are both in trouble, and he also started saying weird things about my personal credit and even asking me questions about my family, kind of scary anyways super bad experience and never want to do business again I hope they do not still my information for other purposes at his point the $500 original loan turned ino $1300 and I never heard him once mention any payments I made so I have no idea how much these people made from me and kept for themselves and restarted the debt from scratch plus added additional interest and fees.