Hello,
Thank you for contacting the support and we regret the inconvenience caused.
The PRO subscription is already activated in your account:

We highly recommend going through the following guides to set up the plugins completely and correctly:
https://rankmath.com/kb/how-to-upgrade-to-rank-math-pro/
https://youtu.be/CE4NkhMdABM
and
https://rankmath.com/kb/how-to-setup/
Hope this helps.
Thank you.
Ok, installation worked.
Now i do neither get the credits for my AI content included nor the newly buyed ones. Can you check?
Hello,
Please reconnect your website to your Rank Math account by going to WordPress dashboard > Rank Math dashboard > Help > Disconnect and Connect.
Then, head over to Content AI and refresh the credits count so the plugin will request the updated credits from our server:

Hope that helps. Please don’t hesitate to let us know if you need our assistance with anything else.
Now i got the 20 from the subscription but not the additional 50 i bought
Hello,
It seems like you purchased the credits with some other email address.
Can you please search and forward a receipt from FastSpring.com so we can locate the purchase?
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.