Can you tell us more? Did you buy a membership but you’re not able to access the app or you had problem buying a membership?
Here’s the link to buy a membership in sats
Discussion
When I press the Lightning payment option for one year, I am automatically redirected to the sign-up page, even though I am already logged in.
This is what you should see: https://video.nostr.build/0cc47c333190963b91986ed1ce22a6fa9c1aeb2d5ea9e2077c04797b809e044c.mp4