I have been using Mullvad[1] for a year or so now and am really happy with the extent they go to avoid storing payment information. One of the things that caugh

I have been using Mullvad[1] for a year or so now and am really happy with the extent they go to avoid storing payment information. One of the things that caught my eye about them initially is that you could literally mail them an envelop containing your account number and $5 cash and they will add that time to your account, which seems to solve what it was you were asking about (although I am sure physically mailing something comes with it's own issues of privacy). [1]https://mullvad.net/en/help/no-logging-data-policy/ https://mullvad.net/en/help/no-logging-data-policy/