Les abonnements sont mensuels, sans engagement. You can suspend your subscription at any time.
All you have to do is go to "My account", then "Suspend my subscription".
The suspension will be effective on the anniversary date of the subscription, you will receive the videos of the month you have already paid.
The videos you have already received will be available on your account for 1 year, in "My videos".
And if you re-subscribe, you will receive the next video, as if you had never left!