and your point is?
A civillian pilot of a non Mil registered a/c does not require any permission at any time to enter a MATZ unless the MATZ is part of a class A, B or D controlled airspace.
The Marham MATZ most certainly does not fall into that category, and since, for the most part, they cease flying at around 1700 on a Friday until 0800 on Monday, for tea, medals and generally being jolly fine fellows, aside from the possibility of glider flying who are only entitled to the ATZ, there's no relevance to your post.