I originally started disputing some items on my credit report on XXXX/XXXX/15. I then received a reply from Experian dated XXXX/XXXX/15 stating that they think my dispute letter was " suspicious '' and that it was not sent by me. I even sent a copy of my driver 's license and utility bill in my initial letter. What else do I need to send? I have sent them multiple letters since then to dispute my accounts again and have yet to receive any result for my dispute.