To Whom It May Concern : I received an alert by the Experian XXXX XXXX XXXX about an increase of the credit limit of a XXXX Card associated with me from $ 16k to $ 20k. While I am the holder of a XXXX Credit Card, branded " XXXX XXXX '', this card has a different limit ( $ 7k ). Moreover, this limit was not changed recently. 
I therefore conclude that XXXX XXXX is reporting incorrect information against my credit file. I demanded correction of the incorrect data reported against me from XXXX in writing, postmarked XXXX/XXXX/15. My communication to XXXX is attached. 
Thanks much for your assistance in this matter -- Kind regardsXXXX XXXX