https://www.credit.com/blog/track-down-your-old-debts/
https://www.consumer.ftc.gov/articles/debt-collection-faqs
How to Find Out If You Have Debt in Collections
위 링크들을 참조해보세요.
1. " -Check Your Credit Report
2. -Find Out If a Credit Agency Tried to Contact You
3. -Ask the Original Creditors
4. -Get Contact Info From Your Credit Report . . ."