MichaelT Posted January 24, 2018 Report Share Posted January 24, 2018 I just purchased a license for Nitro Pro 10 on eBay. The product works, but I'd like to upgrade to 11. When I entered my serial number I received a message that there's an eligibility issue. My serial number has letters and numbers--apparently v. 10 should have only numbers. Not sure this is the reason for the eligibility issue, but either way, I'm stumped. Any thoughts? Link to comment Share on other sites More sharing options...
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