UPGRADE MY SUBSCRIPTION
If you have a one- or six-month plan, you can upgrade to a longer one. We prorate all upgrades.
For example, suppose you purchased a six-month subscription on January 1st for $9.50 and you upgrade to a one-year subscription exactly half-way through the billing cycle (i.e. April 1st). When you upgrade at a cost of $14.50 per year, the unused portion of the previous plan results in a credit of $4.75 (half of the $9.50 you already paid). The cost of the upgrade to one year is therefore $9.75 (the regular $14.50 charge minus your $4.75 credit).
If you wish to only renew your subscription without upgrading, you don't need to do anything: all subscriptions are automatically renewed unless cancelled.