The PRO version doesn’t work on my account.

Hello,

I’m sorry to hear that you are facing issues with the PRO version on your account even after purchasing it through FastSpring. To assist you further, please follow these steps:

1. Log into your Rank Math account and ensure you are using the correct email address associated with your PRO purchase.
2. If the issue persists, please open a ticket with our support team by visiting the Rank Math Support Forum and provide the invoice and order number for your purchase.

In the Ticket Title section, briefly summarize the problem, and in the Ticket Question section, provide more details about the issue you are facing.

Include the invoice and order number in the Sensitive Data section when submitting the ticket. Our support team will then be able to assist you further in resolving the issue with your PRO version.

Thank you for reaching out to us, and we appreciate your patience as we work to resolve this matter for you. If you have any other questions or need further assistance, feel free to let us know.

Sources:
I Purchased Rank Math PRO but Rank Math is Still Showing FREE » Rank Math
Rank Math Refund Policy » Rank Math
How to Change or Update the Payment Method » Rank Math
How to Fix PCLZIP_ERR_BAD_FORMAT (-10): Unable to find End of Central Dir Record signature » Rank Math