this number calls all the time

I received multiple calls from the above number. The first two times they did not answer, the third time I was told I won an American Exotic Vacation. I was very annoyed to receive that call especially on my business cell phone. It was very hard understanding the first man because of his very heavy accent, he passed the call to someone else. When he asked if I had trouble understanding the previous agent I agreed. That's when he started getting angry accused me of not undersanding English, and used profanity. I have never heard of a company using profanity when asked a few questions. I hope you can get to the bottom of this and prosecute whoever is doing this. Thank you for your time. Regards, Bill

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Nick said he was calling from the internet crime unit and I needed to contact him before 5pm. He called me at work and I've had these calls before from another number which I ignore! I'm just curious to know if this is a scam which I expect.

calls asks my name several times and hangs up