Post the whole of their rejection. It should contain mandatory info as regards your options. Appeals have been won on procedural irregularities at this stage even when the contravention is proved.
Yes, £80 discount is still available. Thank you
If it is then as regards the NOR it probably expires today in the best case. Their NOR was served on 29th August and therefore would have to say 'within 14 days of the date of service'.....
..but this is the part of the NOR we've not seen!