AdSparc interview questions

This was before my interview process, when I wanted to know more on the role and contacted the HR through a job portal ,After 2-3 messages on letting the HR that I have applied for the role and I wanted to know further on it, I was blocked - I'm still unable to figure how difficult it to say a no to a candidate if we don't fit for the role. For a company like Adsparc which is growing at such a good space, it would be really nice to have HR's who can communicate well in a positive way