XXXX XXXX Please provide proof of notice that was given that was to be submitted Within five days of the collector 's initial communication, it must send you a notice include the amount of the debt, name of the creditor, and notice of your right to dispute the debt within 30 days. [ 15 USC 1692g ] 809 ( a ) A debtor must be allowed to validate the debt that they are being called on. Once a collections agency notifies the individual that they owe a debt, the individual has 30 days to validate or dispute the debt. The collections company is not allowed to continue collections procedures until after the debt is validated or disputed. 

U.S. Code Title 15 Chapter 41 Subchapter V 1692g 15 U.S. Code 1692g - Validation of debts ( a ) Notice of debt ; contentsWithin five days after the initial communication with a consumer in connection with the collection of any debt, a debt collector shall, unless the following information is contained in the initial communication or the consumer has paid the debt, send the consumer a written notice containing ( 1 ) the amount of the debt ; ( 2 ) the name of the creditor to whom the debt is owed ; ( 3 ) a statement that unless the consumer, within thirty days after receipt of the notice, disputes the validity of the debt, or any portion thereof, the debt will be assumed to be valid by the debt collector ; ( 4 ) a statement that if the consumer notifies the debt collector in writing within the thirty-day period that the debt, or any portion thereof, is disputed, the debt collector will obtain verification of the debt or a copy of a judgment against the consumer and a copy of such verification or judgment will be mailed to the consumer by the debt collector ; and PLEASE PROVIDE PROOF OF NOTICE THAT THIS WAS SENT TO ME WITHIN THE TIME FRAME ALLOWED ( certified mail # XXXX ) RECEIVED BY YOUR OFFICE XXXX/XXXX/XXXX ( 5 ) a statement that, upon the consumers written request within the thirty-day period, the debt collector will provide the consumer with the name and address of the original creditor, if different from the current creditor. 
( b ) Disputed debts If the consumer notifies the debt collector in writing within the thirty-day period described in subsection XXXX a ) that the debt, or any portion thereof, is disputed, or that the consumer requests the name and address of the original creditor, the debt collector shall cease collection of the debt, or any disputed portion thereof, until the debt collector obtains verification of the debt or a copy of a judgment, or the name and address of the original creditor, and a copy of such verification or judgment, or name and address of the original creditor, is mailed to the consumer by the debt collector. Collection activities and communications that do not otherwise violate this subchapter may continue during the 30-day period referred to in subsection ( a ) unless the consumer has notified the debt collector in writing that the debt, or any portion of the debt, is disputed or that the consumer requests the name and address of the original creditor. Any collection activities and communication during the 30-day period may not overshadow or be inconsistent with the disclosure of the consumers right to dispute the debt or request the name and address of the original creditor. 
XXXX c ) Admission of liability The failure of a consumer to dispute the validity of a debt under this section may not be construed by any court as an admission of liability by the consumer. -NOTICE WAS NEVER RECEIVED, SO THEREFORE I WAS NEVER GIVEN THE RIGHT TO DISPUTE ( d ) Legal pleadings ( certified # XXXX ) A communication in the form of a formal pleading in a civil action shall not be treated as an initial communication for purposes of subsection ( a ). 

If the account has been sold to another creditor, then that creditor must prove that it has the right to sue to collect the debt. This usually means producing proof that the debt was assigned to it. Often such proof will be a bill of sale, an assignment, or a receipt between the last creditor holding the debt and the entity suing you.