Preferred payment gateway for country

Go to Settings General on your dashboard

Scroll down to Manage countries

Here you will see the preferred payment gateway option

Now you can select any one of the available payment gateways for any of the countries available. For example, here we are setting Razorpay as the preferred payment gateway for Afghanistan

Now when a user from Afghanistan tries to enroll in a course, they will see the preferred payment gateway set by you as the payment gateway