I am responding to a letter I received from Experian regarding a suspicious request made on my credit file. Based on my understanding of the letter, it looks like Experian is refusing to complete my request because they believe the letter I wrote them was not sent by me. 
I would like Experian to know that I did in-fact send them a letter disputing information on my credit report. I also give Experian my expressed and written consent to continue with the investigation of my accounts per the dispute letter I wrote to them. 
I would also like to know specifically what made my letter " suspicious '' and why Experian thinks I did not write my letter to them. Did I say something in my letter that they think I am not smart enough to write myself? 
I would like Experian to let me know if I am allowed to re-write my letter, and if so, would Experian be so kind as to provide me with an example of a letter that would be acceptable to them? 
I am just a student and do not have the money to be represented by an attorney or any other agency. I would like Experian to tell me if completing a dispute over the phone would provide me with the same outcome as a letter?