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The legal process is that you must first file a formal dispute with the CRA under the dispute provision of FCRA 611, which compels the CRA to conduct a formal reinvestigation of the disputed information within 30 days, and send a formal notice of results of that reinvestigation within 5 business days after completing their reinvestigation.
If the CRA then formally verifies the accuracy, you can file a civil action and get the matter reviewed by your factual showing to the courts.