Possible reason for 2 npubs with no notes...
When a new coinos account is created, it automatically generates a Nostr npub. This can be found when clicking on Home / Profile details
Therefore the npubs would have no engagement and probably won't.
If anyone is wishing to contribute, best to use the lightning address rather than attempting to zap.
Photo example is my Coinos profile, I've used this wallet for about 2 years now.