how we can change my email and setuprankmath on new email ?

Hello,

I apologize for the inconvenience you are facing. To change the email associated with your Rank Math account, you can follow these steps:

1. Log into your Rank Math account using your current email address.
2. Go to your account settings and look for an option to update your email address.
3. Update your email address to the new one you want to use.
4. Save the changes.

If you encounter any issues during this process, please let us know by replying to this ticket, and a human agent from the Rank Math Support team will assist you further.

Regarding changing your Rank Math account login method from Google to manual login, unfortunately, at the moment, Rank Math does not support manual login methods. You can only log in using the email address associated with your Rank Math account.

If you have any more questions or need further assistance, feel free to ask.

Thank you for reaching out.

Sources:
How to Change or Update the Payment Method » Rank Math
How to Change Your Username in Rank Math » Rank Math
I Purchased Rank Math PRO but Rank Math is Still Showing FREE » Rank Math
How to Fix Problems While Connecting Account Using Rank Math » Rank Math
How to Use Rank Math on a Staging Site » Rank Math