Sprouts Farmers Market interview questions

I applied online for a new store opening in my town. A couple days later, I received an email asking to schedule a phone interview. The phone interview was about 5 minutes long and super simple. The woman interviewing me said I sound perfect for the job and will schedule me for an in-person interview. She then goes "oops." Courtesy clerk interviews were overfilled and she could not fit me in. She said I could interview for any other position if I was over 18, but since I'm only 16 courtesy clerk is the only position available. She told me my application was put on hold and they will call me if they're interested. I have tried to call 3 times to follow up and let them know I am very interested in the position but they have never answered. Basically, I didn't get the job. I just wish she would have checked to see if interviews were even available before calling me and wasting both of our time.