Fine. So you would likely get two bites at the cherry with the discount being re-offered.
But, as others have posted prima facie you were parked on 24/7 waiting restriction without good reason.
So, what issues are at large?
Is there actually a 24/7 waiting restriction in a traffic order? You could ask for the traffic order because this is the basis of the authority's case.
As said previously, would Greenwich actually resist any appeal at the tribunal and/or commit a serious procedural impropriety during the formal process?