Concentrix interview questions

The initial phone interview was with a recruiter who asked some general questions about my background. The next phone interview was with the hiring manager who provided me with a conference call number to dial which wasn't toll free, so I ended up being charged $30 by my cell phone provider. The interview was fairly basic, we discussed the details of the role. He said they would be making a decision in the next couple of days. I sent a thank you email and didn't hear back. I sent another email the following week and also received no response. It is common courtesy to at least give the candidate some sort of response on the outcome of the decision. Ignoring emails just shows a lack of consideration.