I just looked and you're right damn! The login works but attempting to top up gives me a 400 error. Maybe he's still on X or some other place? Would suck to lose the LN option Mullvad.
Discussion
Yea, I was down to my last few hours before I needed to top up so I had to use an on chain payment, unfortunately. Really hope that his site is only temporarily out. Would be good if Mullvad accepted Lightning payments directly really.
@mullvad... I wish tagging would work better on Amethyst