Thank you for contacting Rank Math for help with your Content AI credits not showing after renewing your subscription.
Can you please head over to your rankmath.com Account > Websites tab or visit this URL: https://rankmath.com/my-account/websites/?
Check if you are able to see the correct remaining credits. See my screenshot below for reference:

If the credits are correct in your rankmath.com account but still 0 in your WordPress Dashboard, please go to your WordPress admin area > Rank Math > Dashboard > Help, disconnect and reconnect your Rank Math account again.


After reconnecting go to Content AI in a page/post and click the refresh icon:

Once you have done the above your credits should display correctly.
Hope that helps. Please let us know if you have questions.