How can I upgrade to a PRO account? You can upgrade to a PRO account by clicking here! Updated on November 10, 2016 Tagged: how to upgradePROWiseStamp Was this article helpful? Yes No Related Articles What is BlueSnap? WiseStamp For Outlook How can I add a custom social icon? How can I edit my different signatures? I’m trying to log into my account with the Thunderbird plugin, but it’s telling me to upgrade even though I’m already a PRO user. What’s up? I’ve upgraded to PRO but am still recognized as a Free user.