Please reach out via [email protected] or create a support ticket here for manual assistance in upgrading your existing plan. We cannot issue refunds or provide a prorated adjustment for the upgrade. However, for those switching to Legendary, we'll work out an arrangement for an additional free bonus item to be shipped with your Legendary gift.
If you have automatic renewal enabled, and wish to upgrade to a higher tier only after your existing subscription is set to expire, you'll want to disable automatic renewal. Upon your subscription's expiration, you can then sign up for the higher tier at your discretion.