If it was an accurate report (which by your own admission it was) then all you can do is ask for it to be removed via goodwill letters, you have no other arrows in your quiver to force them to comply since you have already paid them in full.
Not much you can do with accurate info. Be thankful one was deleted. It may be a tad late but google the HIPPA process which we cant discuss here and see if this can be done to have it deleted. Good Luck!