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If your intent is to place a fraud alert in your credit file, then you must follow the procedure set forth i FCRA 605A.
I would not rely on a credit repair organization to perform that function on your behalf.
If you are requesting only an initial fruad alert (i.e., good for only 90 days), then simply send a request to the CRA.
However, if you are requesting an extended fraud alert, such alerts are based on an assertion of an actual fraud/identity theft, and require the additional submission of an identity theft (police) report.