You might have created the poll without being logged in to your Doodle account.
When using Premium, always make sure you are logged into your Doodle account before creating a poll.
Please also check the settings of your Doodle account here: make sure your Premium subscription is selected in the drop down menu. If it says "Do not use Premium" click on the field to change the status.
If you still need help, feel free to contact our support team.