Update: I called them back and the person who answered started yelling at me about how she had been trying to call me for weeks but I didn't answer, which is untrue. I yelled back at her and called her a liar. They still want me to work for them.
Job hunting is so stupid. I recently accepted a job, did all of the paperwork for said job and then got an email saying I didn't accept the job. I spent the last week trying to get ahold of anyone at the company with no luck.