lorrainelooker
You can contact the DWP and ask why they did not action the extra points, I assume that you told them that you were happy with the revised offer.
Unfortunately the Decision is not revised until it is put on paper and sent to you, it's possible that when they went to look at it again they decided that the revised points weren't warranted.
It is something to mention in your papers for the Tribunal.
Gordon
Nothing on this board constitutes legal advice - always consult a professional about specific problems