It usually takes up to 8 hours, unless you submit your application in an unlucky timezone with no online administrators/testers. Your application however has already been handled, it was rejected with the reason "Your character's story is too short. Add more to it.". Resubmit it after putting more effort into the character story question and you should be fine.
@Earl Is it fine to use the same text on the first question? Here's the text:
I am from Bulgaria. I want to join the server, because it seems like people will actually respect RPing (cough HorizonRP cough) and it will be a fun journey. I've played in Opis Roleplay (the sucessor of Project: Los Angeles), HorizonRP and probably other servers I don't remember. In Opis I learnt Roleplaying, what MG, RK, PK, PG etc. etc. are. I'm pretty confident in myself as a proper "roleplay"-er.