@Hashim well I've posted the notice of rejection properly, I think you have an arguable failure to consider because they wrongly state that you claimed to be stationary for 13 seconds, while that is quite the opposite of what your representations asserted.
Transport for London does not demand the full penalty if they are notified of the appeal before the discount expires, but it takes a week or so for the tribunal to log and appeal and send a notification to the parties, so you might have missed the boat for a risk-free appeal.
On the other hand the notice of rejection has been held to be defective because nowhere does it state whether £80 is the full sum or the discounted sum.
Hashim, you need to decide whether you wish to carry on.
@MrChips do you have a view on this one?