And no, I am not paid or otherwise compensated to write this, or affiliated with them other then being a customer.
[*] They even say: "Please avoid writing your name or address on the envelope."
Do they take any other cryptocurrencies, or would I have to convert some other coin into bitcoin to pay them?
OpenVPN is nice, since my OpenWRT router can be a client.
EDIT: I emailed Mullvad and received a reply within 15 minutes! and it answered my questions accurately! I think they win the customer service award for today :D
They have openvpn instructions for openwrt at https://mullvad.net/en/help/openwrt-routers-and-mullvad-vpn/
And their clients are open source: https://github.com/mullvad/mullvadvpn-app
(sorry for not replying earlier!)
So are AirVPN, Insorg and IVPN.
Edit: For background, see https://www.computerweekly.com/news/252466203/Top-VPNs-secre...
I'm not a customer of either, just been researching alternatives since tis news hit earlier this week.