Hello,
Thanks for contacting us. Custom payment methods are only available in the commercial version of Vik Booking as you may have noticed already.
The payment framework of Vik Booking can be extended through custom payment plugins, which are native WordPress plugins that declare specific hooks compatible with Vik Booking to start the payment transaction and validate the payment response.
There’s a technical documentation for developers on our website that shows how to create a custom payment plugin. By following our technical documentation as well as the technical documentation provided by your bank, you will be able to add a custom payment plugin into your installation of Vik Booking.
For any technical questions we kindly ask you to reach our to our team through our websites.
Thank you,
The VikWP Team