状況がちょっと違うようですが、
ある人が一週間ライセンスが届かない、とsoftwrap（ライセンスを管理しているところ）に問い合わせたところ以下のメールが返信された、という例がありました。
URL：http://gmc.yoyogames.com/index.php?showtopic=280090&st=100about:blank

>To re-activate your software, kindly open it once you have installed it and follow the steps below:
>
>- You will need to be connected to the Internet
>- Access the software
>- Select "Re-installation of License" or "Activate License" from the screen that appears
>- Enter your License Holder Name and Purchase Reference Number in the fields provided (if necessary click the tick box which says "Re-install Existing License")
>- The software will automatically reinstall and be activated
>
>You will be pleased to know that we have included your license holder details to proceed with the re-installation. Please copy and paste the details below:
>
>License Holder Name: INSERT (EMAIL ADDRESS) HERE
>Purchase Reference: INSERT (#-##############) HERE
>
>Should you require further assistance, feel free to contact Softwrap Support desk at support@softwrap.com
>

内容を見る限り、Re-install Existing Licence からやるようですね。もしまだ試してないのであれば、試してみてください。