I sent it from Nostrudel and can't see it, either.
Discussion
I zapped you 27 sats from Freerse and that one shows up.
Hmm. I changed the relays in the two apps, to make sure they match, and I only see the zaps in Freerse.
Nostrudel is showing them glacially slowly. Weird.
Ligess always sends out a kind 0 event of the zapper profile first, as some relays don't accept events without a profile.
This is the first paid one, purplepages blocks the zap request, which makes sense. Noswhere blocks both, but it looks to be accepted on forest and citadel.
I did notice some empty objects in the log, not sure what that is. Those might be relay notices which I'm losing now?
On another zap, it got 'restricted: not an active paid member' from nostr.wine.
After this, I think you played with a different app, for a 25 sat zap: 'An error occured while getting invoice: No relay tag on zap request', not sure why that would be?
So it seems at least some relays do accept them, but not that many.
thecitadel is your relay?