Hi Sarah,
DWP are a bit fickle about reviews where there has been a tribunal decision. They say they won't but then clearly do! I drafted a letter on this forum for someone and who had been told to reclaim, and hence would have lost continuity of payments. I phrased this as a complaint and it clearly worked as she was reviewed instead of having to do a new claim.
I wouldn't worry about the legal intricacies of review or no review. If DWP give you a review, you'll be paid until the new decision and beyond if successful.
Good luck.
LL26
Nothing on this board constitutes legal advice - always consult a professional about specific problems