Hello,
We’re sorry to hear about the issue you’re facing with your support ticket. If you accidentally changed your ticket from free to premium while adding sensitive information and now don’t have access to it, we recommend reaching out to our support team directly by clicking the “Submit a Ticket” button on our Rank Math Support Forum.
You can provide the details of the issue you’re facing, including the ticket name “Cannot change canonical URL on dynamic URLs,” and our support team will assist you further.
If you have any other questions or need assistance, feel free to let us know. We’re here to help!
Sources:
I Purchased Rank Math PRO but Rank Math is Still Showing FREE » Rank Math
How To Effectively & Efficiently Get Support from Rank Math (Support Tickets) » Rank Math
How to Fix “Duplicate, Google Chose Different Canonical than User” » Rank Math
How to Fix 429 Error with IndexNow API » Rank Math
Hello,
Thank you for your query, and we are so sorry about the trouble this must have caused.
Here is the ticket link where one of my tema mate have already replied:
https://support.rankmath.com/ticket/cannot-change-canonical-url-on-dynamic-urls/?view=all#post-716277
We have moved the ticket from PRO to FREE and now you will be able to access it.
Could you please check and confirm if you can now access that ticket using the link shared above ?
Please refer to the screenshot below :

We hope that helps, and please don’t hesitate to get in touch if you have any other questions.
Thank you.
Does work! Thank you very much!
Hello,
We are super happy that this resolved your issue. If you have any other questions in the future, know that we are here to help you.
If you don’t mind me asking, could you please leave us a review (if you haven’t already) on https://wordpress.org/support/plugin/seo-by-rank-math/reviews/#new-post about your overall experience with Rank Math? We appreciate your time and patience.
If you do have another question in the future, please feel free to create a new forum topic, and it will be our pleasure to assist you again.
Thank you.