In your Paysera account, go to Projects and Activities > My projects and select Project settings > Paysera Checkout settings. You can scroll down to the section Payment methods you would like to accept and set the payment methods for particular countries. Check the desired payment method and click Save changes.
Moreover, you have an opportunity to select whether you want new payment methods to be activated on your website immediately after their addition. To do that, simply check the box “Activate new payment methods after they are enabled in the system.“