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The six lines, on one page.
Every dispute letter lands in one of two piles. The pile that gets a reinvestigation has six lines in it, and most letters on the internet are missing all six. This page is the six, with the section of law beside each, the mailing-day ritual, and the four clocks.

What is on it
The six lines
The account as printed, the one field, what the report shows, what is accurate, the document, and the request in the statute's words. Each with its section.
Mailing day
Three to five items per letter, the dispute address on the report, certified with electronic return receipt, the green-card date that starts the clock, the tin.
The four clocks
Thirty, five, five and fifteen: what each one counts from.
What never to write
The six sentences that put a letter in the other pile, including the one about an accurate item.
This is a page, not a service. QualifyReady is a credit file analysis and document-preparation service, not a credit repair organization. You send the letters. If you want the chapters behind the page, The Six Lines is $7.