I would recommend you call the MATZ ATC at least five miles out
Then I suggest you read CAP413 you might learn the correct procedure!
1.15.3 Pilots requiring a MATZ, and where appropriate, ATZ penetration service must establish two way RTF communication on the appropriate frequency with the aerodrome controlling the zone when 15 nm or 5 min flying time from the boundary
whichever is the sooner, and request approval to penetrate the MATZ,and if
appropriate ATZ. When requested by the controller to ‘pass your message’ the pilot
should pass the following information:
a) Aircraft Callsign / Type
b) Departure Point and Destination
c) Present Position
d) Level
e) Additional details / Intention (e.g. Flight Rules, Next Route Point)
http://www.caa.co.uk/docs/33/CAP413adv.pdf