Red cell distribution width (RDW) is a parameter that measures variation in red blood cell size or red blood cell volume.
If there is something on your credit report that you believe is incorrect you need to write to the credit reporting agency and ask them to remove it. If they can not get proof that the item was reported correctly they will remove it. Call or go to the website and learn how to do this.
There are a lot of credit repair companies who claim they know how to remove negative credit but the fact is they can't even get inaccurate negative credit removed let alone remove negative credit items that are accurate.