It is completely up to the creditor. At this point they don't want to do you any favors, so I would reach out to them over the phone and in writng to see if they are willing to change how it is being reported. Stay on top of them if you really want to have it changed. Going to the CRA's is not going to do you any good.
Starting Score: TU 477 EQ 533 BK 1/27/2012