Reminisce employs a "Continuous Renewal Service". Once you have subscribed and provided a credit card number towards payment of your subscription, you are automatically resubscribed after twelve months.
Reminisce will send a reminder letter as the anniversary date of your subscription nears, advising you that a charge to your credit card for the following year is imminent. A call to their customer service department is required only if you wish to cancel your subscription.
If you had previously canceled your subscription and now wish to resubscribe after a gap period, you can do so online or by calling their customer service number (1-888-859-7838).