I don’t know if they’re paying or not as we’re sending astronauts up on their craft. MS-22 (launched 9/2022) had American astronaut Francisco Rubio on board. That’s the vessel that sprung a coolant leak awhile back and effectively stranded those cosmonauts and astronaut until MS-23 can be launched in a bit. However, I think they’ve decided to extend their stay until sometime in the summer. I also read that if for some reason they had to evacuate the station NOW, provisions could be made in the currently docked SpaceX capsule for them.