CuriOdyssey interview questions

They made an appointment to call me for an interview. I moved another appointment for this. The time came and went. I emailed the woman who was supposed to call me. No answer. How hard is it to simply call or email to say "we've decided to interview other candidates"?

It was just one interview with two managers. Both were so kindly. We talk about my experience, they told me how is the daily. We talk about salary and terms of contract, they were very clear about what are they looking for.