Credit Card only it looks like. Mozilla VPN is just a wrapper around Mullvad (it uses their servers and technology) so I would recommend getting that. Mullvad accepts a lot of more bespoke payment methods (crypto, wire transfer, cash in an envelope). The main reason to get Mozilla VPN is to bundle it with Mozilla’s other services.

This isnt even a unique or uncommon type of guy Lol you find these dudes everywhere at Hypebeast stores and corner store vape shops