Fuel leak, fuel tank feeding hose

[motorica.net]

Hi guys

I just noticed a fuel leak, 1 drop per 5 sec.
I'm trying to understand what part should i order and i can't figure it..
According to realoem there is a plastic fuel neck and that's it, but i think there is a rubber hose connecting between the fuel tank and the filler cap.

Anyone replaced this part or removed the filler neck?

Thanks!
David

Added pic of my car