MJH Posted February 26, 2020 Report Share Posted February 26, 2020 Hi, I'm trying to upgrade from Nitro Pro 11 to version 13. I have been to the upgrade page on the website and entered my Nitro Pro 11 serial number to check what upgrade I'm entitled to but I get message that says "We were unable to validate your serial number. Please ensure you entered it correctly. If you believe you are eligible for an upgrade, please leave a post on our Community Forum and update us with your issue. I have simply copied and pasted my serial number (several times) but get the same message. Am I eligible for the upgrade to Nitro Pro 13 at the price stated on the website of $110.68? If so, how do I get the upgrade? Link to comment Share on other sites More sharing options...
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