If you have keys purchased in April 2018 you might have to contact our support via e-mail - firstname.lastname@example.org !
IMPORTANT: please add the receipt and/or the key code to the inquiry sent there, so the key can be updated to a working key.
You should be able to retrieve the key when logging into your account here on playersdynasty.com
This is how your e-mail should look like - serial number is blackened here.
This is how it looks like on the site: