Demand validation before you say a word back.

Most credit card lawsuits are filed by third-party debt buyers who purchased charged-off accounts for a fraction of face value, often years after the original default. Before responding to any collection call or letter, a consumer generally has the right to demand written validation of the debt and to send a written cease-communication demand — and should check whether the state's statute of limitations may already have run before taking any action that could revive an old debt.

• 15 U.S.C. § 1692g (FDCPA § 809) — validation notice; consumer may dispute in writing within 30 days and demand verification
• 15 U.S.C. § 1692c(c) (FDCPA § 805(c)) — written cease-communication right, subject to limited statutory exceptions
• Regulation F, 12 C.F.R. § 1006.14(b) — presumptive "7-in-7" limit on collector telephone-contact frequency
• Fair Credit Billing Act, 15 U.S.C. § 1666 — billing-error dispute rights, generally while the account is still with the original card issuer
• State statute of limitations for contract/open-account claims (commonly ~3–6 years; varies significantly by state and claim type) — generally an affirmative defense that must be raised, not an automatic bar
• General assignment/contract law and UCC § 3-308 (negotiable instruments) — a party suing on an assigned or negotiable debt generally bears the burden of proving standing and an unbroken chain of title

• Bartlett v. Heibl, 128 F.3d 497 (7th Cir. 1997) (a validation notice cannot be contradicted or overshadowed by other demanding language in the same collection letter)
• Jerman v. Carlisle, McNellie, Rini, Kramer & Ulrich LPA, 559 U.S. 573 (2010) (the FDCPA's bona fide error defense does not cover a collector's mistaken interpretation of the law)

• Identify the last-payment or default date to estimate whether the state's contract/open-account statute of limitations may already have run
• Send any validation or cease-communication demand in writing (certified mail with return receipt is common practice for a paper trail)
• Avoid any payment or written/verbal acknowledgment of the debt before confirming SOL status — a partial payment or written promise can restart the clock in many states

• Pull (or request) the account history to pin down the charge-off date and the last payment date
• Send a written validation request within 30 days of the first collection communication, and a separate cease-communication letter if unwanted contact continues
• Research the specific state's statute of limitations for credit card/open-account claims (commonly 3–6 years, but varies) rather than assuming a nationwide rule
• Keep copies of all correspondence and delivery confirmation in case a lawsuit is later filed
• If the debt appears time-barred, avoid any action that could revive it and consult a consumer-law attorney about asserting the defense if sued

• A validation request pauses collection but does not erase the debt or prevent a lawsuit from being filed
• Never ignore a later summons just because validation was requested — appearing and answering is generally still required
• Making a "good faith" payment on an old debt can restart the statute-of-limitations clock in many states