James Lesser Posted December 19, 2022 Report Share Posted December 19, 2022 I purchased Nitro Pro through Cleverbridge 11/19/2021. I just received an offer to upgrade Nitro Pro for 30% off. When I entered my serial number, the server says that I did not enter a valid number. Link to comment Share on other sites More sharing options...
Official Nitronaut Allain Umailin Posted December 19, 2022 Official Nitronaut Report Share Posted December 19, 2022 Hello @James Lesser, Thank you for reaching out to us through our Community Forums! Did you enter your Nitro PDF Pro 13 serial number 50499961-xxxxxx-55825 and received a message to enter a valid key? Link to comment Share on other sites More sharing options...
James Lesser Posted December 19, 2022 Author Report Share Posted December 19, 2022 I did. Link to comment Share on other sites More sharing options...
James Lesser Posted December 19, 2022 Author Report Share Posted December 19, 2022 Could the problem be that I am using version 13 which is the current and no "upgrade" can occur? Link to comment Share on other sites More sharing options...
Official Nitronaut Allain Umailin Posted December 20, 2022 Official Nitronaut Report Share Posted December 20, 2022 Hello @James Lesser, Thank you for your posts and our sincere apologies because you are already using our latest version which is Nitro Pro 13. You are getting that error because you have entered the key for our latest release. With this, please just ignore the upgrade promotion that you have received. Link to comment Share on other sites More sharing options...
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