If you want to unsubscribe from Synergy, you can send an email to email@example.com. Full yearly memberships at Synergy start as of October 1st (or later) until September 30th. If you miss this date, your membership will continue until the end of that academic year. During this year, you still benefit from the membership and the contribution will be drafted from your account. The membership of half a year will be automatically canceled after six months. For any questions, you can send an email to firstname.lastname@example.org.