A phone call to your servicer creates no legal obligation to respond. A properly labeled written request under RESPA does — with specific, enforceable deadlines. Knowing the difference, and how to use it correctly, turns a frustrating hold-music loop into a paper trail your servicer is legally required to answer.
Under RESPA, a written request that identifies your account and either asserts an error or requests specific information about your loan's servicing triggers formal obligations your servicer must meet — timelines, an acknowledgment requirement, and a substantive response. Federal servicing rules since 2014 formalized this into two related tools: a Notice of Error (NOE) for disputing a specific mistake, and a Request for Information (RFI) for asking your servicer to provide specific records or information.
This is different from calling customer service and asking a question verbally. A phone call creates no paper trail and no legally enforceable deadline. A written notice that meets the requirements does.
Your servicer generally must acknowledge receipt within 5 business days of getting your request. It then generally has 30 business days to substantively respond — either correcting the error, explaining why it disagrees an error occurred, or providing the information requested — with some categories of request eligible for a 15-business-day extension if the servicer notifies you and explains why.
These deadlines are what make this tool meaningfully different from a regular complaint: if your servicer blows past them, that itself is a violation you can escalate — to the CFPB, to your state's mortgage regulator, or in some cases through legal action.
This isn't the right tool for a same-day emergency (a wire that hasn't posted, a payoff quote you need in the next hour) — the response timelines are measured in business days, not hours. It's also not meant to be used to delay a legitimate obligation, like disputing a payment you actually missed purely to buy time; servicers and courts can distinguish a genuine dispute from a stalling tactic.
It's the right tool for exactly what it sounds like: getting a specific error corrected or specific information produced, in writing, with a deadline attached.
This is general educational information, not financial, legal, or tax advice. Rules and figures change, and specifics vary by lender, loan type, credit profile, and location. Verify anything that affects a decision with your servicer, lender, or a licensed professional.