I just cancelled my subscription (on firday) (14 day free triial). How do i get a month free? My B'day is in March, so i am expecting a few $$ to come my way. I killed 13 Brits as a Sapper on one life

I'm 300 pts shy of becoming a Para...but another month free will give me enough time to get soem money. What are they doing while the campaign is over? I heard there was a battle of britain during a previous inter-mission.