Hello,
Thank you for contacting the support and sorry for any inconvenience that might have been caused due to that.
It seems like you purchased the plugin with some other email address.
Can you please search and forward a receipt from FastSpring.com so we can locate your account?
Looking forward to helping you.
hallo I found my email with receipt. thank you
Hello,
It seems like you purchased the plugin with the email address added in the sensitive data section.
Would you want us to merge the accounts for you?
If so, please tell us the preferred email address and we will do the needful.
Looking forward to helping you.
Good day,
Please merge the gmail account with the a*******@b************** email address. The main email is a*******@b**************.
Thank you.
Regards
Annelize
Hello,
Thank you for your patience.
We have merged your accounts as requested.
Please check on your end if everything is working as expected.
Please go through this video tutorial that shows you how to get started with your PRO license:
Steps to be followed:
1. Ensure that you are logged in to your paid account
https://rankmath.com/my-account/edit-account/

2. Disconnect and reconnect your account from inside WordPress:

WordPress Dashboard > Rank Math > Dashboard > Help and click the connect/disconnect and then the connect button.
You will be taken to RankMath.com again where you can connect your account to activate your license.
You do not need to remove the free version of the plugin. Everything will be ported over to the PRO version.
Hope that helps.
thank i will forward it to my website developer and check
Hello,
Glad that helped.
If you have any other concerns, please don’t hesitate to contact us anytime to assist you further.
Looking forward to helping you.
Thank 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.