Donald J Pliner interview questions

I applied yesterday and just like that I got a call today from the store manager asking me for an interview. I offered to come in today since it was my day off and she agreed. She was very nice and friendly. The interview lasted about 5 minutes then she stopped the interview after revising my availability to tell me my availability would not work for them which made no sense since I put my availability down on the job application so she should have seen that before asking me to come in. She also said this job is paid by commission not hourly even though the job listing on their site has it listed as hourly. In the end I felt I had wasted my time and I got no offer she just said thank you for your time and good luck on your job search.