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

opened disputes with each credit bureau XXXXTransunion XX/XX/XXXX regarding inaccurate information reporting on my credit report. Also sent a notarized and certified USPS investigation request letter n XX/XX/XXXX. since then the disputes have been closed and investigations complete. I got an updated credit report on XX/XX/XXXX AFTER investigations and disputes had been closed/completed. but there is still inaccurate information being reported between each bureau. I still have not recieved a response letter here are my my tracking # XXXX XXXX XXXX XXXX According to the law 15 U.S Code 1681a - Defintions ; rules of construction. 

The term investigative consumer report means a consumer report or portion thereof in which information on a consumers 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 consumers 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. 

the following was concluded to be " 100 % accurate '' but still shows inaccuracies. according to FRCA 15 USC 1681 everything has to be 100 % ACCURATE -XXXX  account has " NO DATA '' from XX/XX/XXXX to XX/XX/XXXX on XXXX report. how can that be? either a payment was made making all information after XX/XX/XXXX inaccurate or no payment was made and the proper information wasn't obtained. 
THIS ACCOUNT WAS NOT UPDATED TO 100 % ACCURACY XXXX XXXX account shows inaccurate payment history XXXX reports " CURRENT/TERMS MET '' for XX/XX/XXXX, XX/XX/XXXX, XX/XX/XXXX... ..Transunion is reporting " UNKNOWN PAYMENT HISTORY '' ... ..XXXX  is reporting " CURRENT/TERMS MET '' for XX/XX/XXXX and XX/XX/XXXX but not XX/XX/XXXX like XXXX? instead XX/XX/XXXX is reporting as " 30 days late '' on XXXX report. 
THIS ACCOUNT WAS NOT UPDATED TO 100 % ACCURACY -XXXX  XXXX account shows inaccurate payment history. XXXX reports " CHARGE OFF '' for XX/XX/XXXX and XX/XX/XXXX but reports " NO DATA '' for XX/XX/XXXX. how can there be no data is the account was " charged off '' previously?... XXXXTransunion reports " UNKNOWN PAYMENT HISTORY '' ... ..XXXX is reporting XXXX CURRENT/TERMS MET '' for XX/XX/XXXX and XX/XX/XXXX how can that be if XXXX reports the account as charged off? Shouldnnt all bureaus be getting the same information from the same source? 
THIS ACCOUNT WAS NOT UPDATED TO 100 % ACCURACY -XXXX XXXX XXXX shows inaccurate payment history. XXXX reports " COLLECTION '' for XX/XX/XXXX and XX/XX/XXXX ... ... XXXX and Transunion are reporting " UNKNOWN PAYMENT HISTORY '' ... .how can this be if all bureaus are supposed to get the same information from the same source? 
THIS ACCOUNT WAS NOT UPDATED TO 100 % ACCURACY