LetterAgent
Mail physical letters by just asking your AI assistant.
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Send your complaint in writing to the provider's billing or customer service mailing address, keep a copy, and ask for a written reply by a date you name. A paper letter creates a dated record that chat logs often lack, and it works well for billing disputes, repeated outages, and service changes you want confirmed.
Do not send a complaint to a retail store or a technician's depot unless the provider tells you to. Look for a billing correspondence, customer service, or complaints address on your bill, in the provider's terms of service, or on its contact page under written correspondence. Large providers often list one address for billing questions and a separate one for legal or regulatory mail. Using the wrong one can add weeks, because mail gets forwarded between departments slowly, if at all.
In Canada, many providers also list a separate address for complaints that have already been through regular support. In the United States, the provider's own complaints team comes first, and a regulator or consumer office is usually the next step only after the provider has had a chance to answer. Your letter should show that you tried the normal route first: note the dates you called or chatted, and any case numbers you were given. That one habit makes your letter harder to dismiss as a first contact.
| What to include | Why it matters |
|---|---|
| Account number and service address | Lets staff find your account without a long exchange of messages |
| Dates of outages, calls, or visits | Turns a vague complaint into a checkable timeline |
| What you want fixed or credited | Gives the reader a clear decision to make |
| A reply date and your contact details | Sets a deadline and a way to reach you |
Open with one sentence that states the problem and the outcome you want. Then give a short timeline: when service failed, what you were promised, and what happened next. Keep each event to a line or two. Long stories about frustration do not help the person who has to fix the account, and they often bury the facts that matter. If you want a credit, name the billing periods involved. If you want a repair, name the fault and how often it repeats.
Attach nothing original. If you refer to a bill, a technician's report, or a speed test, describe it in the letter and keep the original for yourself. One non-obvious point: many providers treat a letter about a contract change differently from a letter about a fault, so say plainly which one you mean. A request to cancel, a dispute over a price rise, and a complaint about downtime each land with different teams, and a mixed letter can stall in the wrong queue.
End with a single ask and a date. For example, ask for a written reply within two weeks, or by a date tied to your next bill. Ask for the reply in writing, not by phone, so the answer itself becomes part of your record. Sign the letter, and print your name, service address, and phone number below the signature.
For a routine billing question, regular mail is fine. For a dispute where money, a contract end date, or a complaint deadline is at stake, certified mail in the United States or registered mail in Canada adds tracking and proof of delivery. That proof matters if the provider later says it never got your letter, or if you need to show a regulator that you complained on a certain date. Keep the receipt with your copy of the letter, and note the tracking number on the copy itself.
Through LetterAgent, you can mail such a letter by asking your AI assistant, approving the exact quoted price, and paying once through Stripe. The letter is printed single-sided on US Letter paper and sent in a double-window envelope to a US or Canadian address. The registered option is available for letters where proof of delivery matters. LetterAgent works for recipients in the United States and Canada only, so a provider address outside those two countries is outside its scope.
Wait until your stated reply date passes, then send a short follow-up that refers to the first letter by date and subject. Do not rewrite the whole complaint. One paragraph is enough: you wrote on a given date, you have had no written reply, and you are now asking for one by a new date. If the second letter also goes unanswered, that pair of letters becomes useful evidence for a consumer protection office, a telecom ombudsman in Canada, or a state regulator in the United States.
Keep every reply the provider sends, and file letters and replies together by date. Chat transcripts disappear when an app updates or an account closes, but a paper file does not. That is the real reason to write: not because a letter is formal, but because it survives.
Ready to mail it? Send your letter with LetterAgent: describe it to your AI assistant, approve the exact quoted price, and it is printed and mailed.
LetterAgent is a working name. Prices include print, postage, and our service fee. US prices in USD, Canadian prices in CAD (Canadian prices exclude applicable sales tax, added at checkout). Currently in private testing.
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