Upgrading your license from one tier to another (i.e Personal License to Professional License ) is simple and can be completed in just a few minutes. To upgrade your license, login to the account section of WPBackItUp using this link: https://www.wpbackitup.com/
Once logged in you will see all your purchases and can select the license that you would like to upgrade.
Click Purchases to see the license options
Click the link for View Licenses > View Upgrades and your license upgrade options will be displayed. (The prorated cost for the new license will be shown under upgrade cost)
Must Select the Upgrade License option desired (License Upgrade prorated cost will also be displayed at checkout).
Select Payment Method> Complete Personal Info /Billing Details > Agree to our license terms and refund policy
Click Purchase Button
If you need further assistance Please contact WPBackItUp Support and submit a support ticket.