debt validation letter

https://juliet-wiki.win/index.php/How_to_Establish_Business_Credit:_A_Practical_Guide_for_Entrepreneurs

A debt validation letter is your formal request to a debt collector asking them to prove you actually owe the debt they're chasing you for. You send it within 30 days of their first contact, and they must respond with documents showing the original creditor, the amount you supposedly owe, and proof that they're authorized to collect. It's your basic consumer protection tool to stop mistaken or phantom debts.