Hello,
Thank you so much for getting in touch.
Unfortunately, we only support payments in USD and we only use FastSpring as a payment processor. If using a credit card isn’t working for you, please try paying using PayPal.
About the invoice, after purchasing, you can download the invoice from your account area: https://rankmath.com/my-account/subscriptions/?tab=payments
But if you want to update or make changes to your invoice, you can do so by contacting FastSpring, our payment processor here: https://fastspring.com/question-a-charge/
Hope that helps and please do not hesitate to let us know if you need our assistance with anything else.
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.