Concentrix Customer Service CSR interview questions

I was impressed by how HR got in touch with me and aggressively scheduled an interview asap. The interview happened and I was told that they will get back to me once they are done with a few other applicants. I waited for three weeks and did not hear anything. I messaged the HR lady and she did not reply. I never heard back from them. I did not expect this kind of unprofessionalism from a company like this.