Product: Credit reporting, credit repair services, or other personal consumer reports

I sent a letter out on XX/XX/2022 to Experian, XXXX, and XXXX. The tracking # s are attached below. However the credit bureaus said they completed the investigation and everything was 100 % accurate. 
I would like to know how was this investigation conducted Who did they talk to or with to obtain these inaccuracies. 

According to the law 15 U.S. Code 1681a- Definitions ; rules of construction. The term " investigative consumer report '' means a consumer report or portion thereof in which information on a consumer 's character, general reputation, personal characteristics, or mode of living is obtained through personal interviews with neighbors, friends, or associates of the consumer reported on or with others with whom he is acquainted or who may have knowledge concerning any such items of information. However, such information shall not include specific factual information on a consumer 's credit record obtained directly from a creditor of the consumer or from a consumer reporting agency when such information was obtained directly from a creditor of the consumer or from the consumer. 

I would like to know who did they talk to. 

How did they complete this investigation According to 15 USC 1681 these following laws has violated my privacy, caused me higher 15 USC 1681i 5A ( a ) Reinvestigations of disputed information ( 1 ) Reinvestigation required ( A ) In general Subject to subsection ( f ) and except as provided in subsection ( g ), if the completeness or accuracy of any item of information contained in aconsumersfileat aconsumer reporting agencyis disputed by theconsumerand theconsumernotifies the agency directly, or indirectly through areseller, of such dispute, the agency shall, free of charge, conduct a reasonable reinvestigation to determine whether the disputed information is inaccurate andrecordthe current status of the disputed information, or delete the item from thefilein accordance with paragraph ( 5 ), before the end of the 30-day period beginning on the date on which the agency receives the notice of the dispute from theconsumerorreseller interest 15 USC 1681S-2 8 ( E ) Duty of person after receiving notice of disputeAfter receiving a notice of dispute from aconsumerpursuant to subparagraph ( D ), thepersonthat provided the information in dispute to aconsumer reporting agencyshall ( i ) conduct an investigation with respect to the disputed information ; ( ii ) review all relevant information provided by theconsumerwith the notice ; and information is inacurrate .15 USC 1681S-2 8 ( E ) Duty of person after receiving notice of disputeAfter receiving a notice of dispute from aconsumerpursuant to subparagraph ( D ), thepersonthat provided the information in dispute to aconsumer reporting agencyshall ( i ) conduct an investigation with respect to the disputed information ; ( ii ) review all relevant information provided by theconsumerwith the notice ; 15 USC 1681S-2 8 ( E ) Duty of person after receiving notice of disputeAfter receiving a notice of dispute from aconsumerpursuant to subparagraph ( D ), thepersonthat provided the information in dispute to aconsumer reporting agencyshall ( i ) conduct an investigation with respect to the disputed information ; ( ii ) review all relevant information provided by theconsumerwith the notice ; 15 USC 1681S-2 8 ( E ) Duty of person after receiving notice of disputeAfter receiving a notice of dispute from aconsumerpursuant to subparagraph ( D ), thepersonthat provided the information in dispute to aconsumer reporting agencyshall ( i ) conduct an investigation with respect to the disputed information ; ( ii ) review all relevant information provided by theconsumerwith the notice ; 15 USC 1681i1 1 ( a ) Reinvestigations of disputed information ( 1 ) Reinvestigation required ( A ) In general Subject to subsection ( f ) and except as provided in subsection ( g ), if the completeness or accuracy of any item of information contained in a consumers file at a consumer reporting agency is disputed by the consumer and the consumer notifies the agency directly, or indirectly through a reseller, of such dispute, the agency shall, free of charge, conduct a reasonable reinvestigation to determine whether the disputed information is inaccurate and record the current status of the disputed information, or delete the item from the file in accordance with paragraph ( 5 ), before the end of the 30-day period beginning on the date on which the agency receives the notice of the dispute from the consumer or reseller.

15 USC 1681i 5A ( a ) Reinvestigations of disputed information ( 1 ) Reinvestigation required ( A ) In general Subject to subsection ( f ) and except as provided in subsection ( g ), if the completeness or accuracy of any item of information contained in aconsumersfileat aconsumer reporting agencyis disputed by theconsumerand theconsumernotifies the agency directly, or indirectly through areseller, of such dispute, the agency shall, free of charge, conduct a reasonable reinvestigation to determine whether the disputed information is inaccurate andrecordthe current status of the disputed information, or delete the item from thefilein accordance with paragraph ( 5 ), before the end of the 30-day period beginning on the date on which the agency receives the notice of the dispute from theconsumerorreseller.

( A ) In general Subject to subsection ( f ) and except as provided in subsection ( g ), if the completeness or accuracy of any item of information contained in aconsumersfileat aconsumer reporting agencyis disputed by theconsumerand theconsumernotifies the agency directly, or indirectly through areseller, of such dispute, the agency shall, free of charge, conduct a reasonable reinvestigation to determine whether the disputed information is inaccurate andrecordthe current status of the disputed information, or delete the item from thefilein accordance with paragraph ( 5 ), before the end of the 30-day period beginning on the date on which the agency receives the notice of the dispute from theconsumerorreseller. 15 USC 1681i 5A ( a ) Reinvestigations of disputed information ( 1 ) Reinvestigation required ( A ) In general Subject to subsection ( f ) and except as provided in subsection ( g ), if the completeness or accuracy of any item of information contained in aconsumersfileat aconsumer reporting agencyis disputed by theconsumerand theconsumernotifies the agency directly, or indirectly through areseller, of such dispute, the agency shall, free of charge, conduct a reasonable reinvestigation to determine whether the disputed information is inaccurate andrecordthe current status of the disputed information, or delete the item from thefilein accordance with paragraph ( 5 ), before the end of the 30-day period beginning on the date on which the agency receives the notice of the dispute from theconsumerorreseller 15 USC 1681i 5A ( a ) Reinvestigations of disputed information ( 1 ) Reinvestigation required ( A ) In general Subject to subsection ( f ) and except as provided in subsection ( g ), if the completeness or accuracy of any item of information contained in aconsumersfileat aconsumer reporting agencyis disputed by theconsumerand theconsumernotifies the agency directly, or indirectly through areseller, of such dispute, the agency shall, free of charge, conduct a reasonable reinvestigation to determine whether the disputed information is inaccurate andrecordthe current status of the disputed information, or delete the item from thefilein accordance with paragraph ( 5 ), before the end of the 30-day period beginning on the date on which the agency receives the notice of the dispute from theconsumerorreseller.