Some cards are bound to a particular region. For example, Amazon US vs Amazon EU. Maybe bitrefill has stopped offering cards in your region.

Bitrefill may be hiding those products for users with a sanctioned IP address. I have verified that gift cards and phone top ups are still available using a USA IP address. 

nullcount

Bitrefill is available in my area without a VPN, it's just that the service itself has removed gift cards and phone top-ups from its website.

Thanks for the detailed reply. I'll try to explore the available options)

bitcoin

How to create a local alternative to Bitrefill?

Monotone

Bitrefill is available in my area without a VPN, it's just that the service itself has removed gift cards and phone top-ups from its website.

Thanks for the detailed reply. I'll try to explore the available options)