Hello,
Thank you for contacting Rank Math and bringing your concern to our attention.
It seems that you have purchased using a different email address as your current account does not have any subscription.
Can you please search and forward a receipt from FastSpring.com or the email address you used to purchase so we can locate your account and verify it?
You can add it to the sensitive data section by editing your first post

It is completely secure, and only our support staff has access to that section.
Looking forward to helping you.
Hello,
Since we did not hear back from you for 15 days, we are assuming that you found the solution. We are closing this support ticket.
If you still need assistance or any other help, please feel free to open a new support ticket, and we will be more than happy to assist.
Thank you.