A debt validation letter is a written request sent by a debtor to a creditor or collection agency asking for proof of the validity of a debt. The main purpose of this letter is to ensure that the debtor is not being wrongly pursued for a debt they don't owe or a debt that has already been paid off.
The letter typically consists of several parts, including the debtor's contact information, the creditor's or collection agency's contact information, a statement requesting validation of the debt, and a request for copies of all relevant documents related to the debt.