How can I manage my current €55/month subscription?

Log in to the customer portal, where you can see your subscription price, €55/month, and the renewal date on which your subscription renews automatically. From here you can update your subscription by clicking “Update subscription” or cancel it by selecting “Cancel subscription”. Under Payment methods you'll see all the cards linked to your subscription, and you can add or change your payment method via the “Add payment method” button.