I submitted a dispute letter to Experian regarding inaccurate information contained in my credit report. I authored the letter on XXXX/XXXX/2015 and sent the letter certifed and return receipt via US mail. On XXXX/XXXX/2015 I received a letter from Experian dated XXXX/XXXX/2015 stating they have determined the dispute was suspicious and not sent by me, a violation of the CRA. Experian has refused to conduct an investigation of my dispute within 30 days, due to inaccurante information contained in my credit report. I was denied a refinance of my mortgage, inorder to save in PMI of {$480.00} a month. 
Here are the accounts I have disputed : XXXX XXXX - Account # XXXX. Late reporting is not correct. 
XXXX Bank - Account # XXXX. Reporting status is not correct. 
XXXX XXXX - Account # XXXX. Incorrect late dates and amounts. 
CAP XXXX - Account # XXXX. Late reporting not correct. 
XXXX XXXX - Account # XXXX. Late reporting not correct. 
Please investigate and provide me with results.