Got a waitlist decision from the college..confused

I’m an Indian student from Saudi Arabia. Since i had issues sending my transcripts via post to the university I decided not to further continue my application process there. I got a mail from college which said that if I dont send my transcripts then they wouldn’t be considering my admission. But yesterday morning I received a Waitlist decision from the college. So I would like to know whether it was waitlist because I didnt send my transcripts and that if i send I would get an acceptance or its just in waitlist for no particular reason? If so, then what is the acceptance rate of a waitlist student?