H4B Catapult interview questions

H4B Catapult was very unprofessional and I would not recommend this company to anyone. A member from the HR team contacted me to set up an interview with the team and I gave my availabilities following no responses. I made sure to follow up with the HR member after a week yet still no response. A week later they told me they had gone with another candidate. This was extremely unprofessional and if this is how they treat their interviewees, I'm sure they would treat their employees worse and with no respect.