Telephone interview

<p>Hello, </p>

<p>I have a question about the telephone interviews. Three weeks ago I received a request for an interview, asking me to specify suitable time and days of the week. I sent them an answer almost immediately, but there is still no response. Should I be worried?</p>

<p>P.S. I am an international student from Bulgaria :)</p>

<p>I would appreciate any replies.</p>