I applied online - just one. Received an email asking me to review the company's background in the morning. Received a total of 3 calls in the afternoon asking me to interview even though I had already made an appointment on the first call. When I told them I had already talked with your colleague and made an appointment, they just said how many applications you made impolitely. I blocked their phone no. and cancel the appointment, coz I doubt their professional and attitude.