Weird, that should work with existing profiles as well. Somebody from our team will reach out to troubleshoot this.

Hello Yesyes, sorry to hear that zaps aren't working for you! Do you mind answering a few questions? We would like to reproduce this problem. Are you trying to buy sats to an account while signed in with an npub? If so, I recommend signing in with your nsec since we don't support any wallet activity while signed in with your npub. We apologize for not making this clear. If you are signed in with your nsec, when you try to buy sats what do you see? What are the problems you run in to?