National Credit Acceptance NCA Buys fradulent accounts Roseville, California

NCA contacted me today about a loan that I supposedly owed. The dates of the loan were fradulent and the companies that they stated had owed money to were previously paid. The dates on the debts were changed to reflect a bogus amount using a closed account. When I contacted the actual companies that I supposedly owed, they advised me that the claims were fradulent and that I did not owe them... When I told them what I had found out the loans being paid, they began to name other possible companies that they bought it from... They were very aggressive.... The loan companies advised me that they do not even use NCA as means of collection and that my account was not even in collectons and had been paid.....