Glad to hear that the fix worked! I've been helping people with PDQ license key issues for years. It's an old trick, but it still works.
The next day, John received another email from the mysterious stranger: pdq license key
"Dear John,
As the IT manager for a large retail chain, John had seen his fair share of software licensing issues. But none had been as frustrating as the PDQ license key debacle that was currently plaguing him. Glad to hear that the fix worked
John was skeptical, but he decided to give it a try. He carefully replaced the hyphen with an underscore in the license key, and to his amazement, it validated successfully. and to his amazement