My interviewer forgot to attach a job application I had to complete before the interview. He sent me an email, telling me that the interview would be on Monday, and that I had to fill in the attached job application. The thing is, nothing was attached. I sent him back an email asking kindly to check again but no answer since I sent the message at 7 PM. It's highly possible he wouldn't get back to me till next week because of the weekend.
What should I do now? It looks like I should fill out the job application before the hiring manager interviews me. Should I just wait and let them deal with it? Or what kind of email should I send to deal with this problem?