I've got 28 days from the 7th October (so I have until the 4th November) to appeal to the adjudicators. Please can someone advise.
Yes, and you're both wrong. Your lack of knowledge is not the issue, it's their error which exposes them to grounds of procedural impropriety.
The mandatory content is that an appeal may* be registered before the end of the period of 28 days beginning on the date of service AND that the adjudicator has discretion to register an appeal after the 28-day period has elapsed.
Date of service is presumed to be 2 working days after posting.
The letter is dated 7th, therefore service was on 9th which is day 1, day 28 is 5 Nov.
IMO, there are two failures in the NOR as regards appealing which should be put to the adjudicator as procedural improprieties:
1. What's included in the NOR is incorrect and not in accordance with regulations;
2. They have also omitted mandatory information.
IMO, these are strong grounds and you should appeal.
Wait for others.