Unable to get in touch with Graduate Advising

I have been reaching out to my graduate program since the beginning of July with no response. I’ll need to defer if I don’t get information on what classes I can enroll in. They don’t offer the classes I need during the second 8 weeks of the semester either. My classes are due Monday since I’m on an assistance program.
I really don’t care if I end up not taking classes at this point, but I didn’t know if this was normal for the graduate programs??
Ever since I enrolled in ODU, it’s been one roadblock after another (I.e. random holds on my account that pop back up after they’ve been resolved, etc).