How do you pay for Biki?

How does one go about paying for Biki? Is there a specific payment method or platform that users are required to utilize in order to acquire or use this cryptocurrency? Are there any fees associated with making payments for Biki, and if so, how are these fees calculated? Additionally, are there any restrictions or limitations on who can make payments for Biki, or are they available to anyone with access to the necessary payment methods?