I got a phone call from this number and when I tried to call them back it was..."this number can't be completed as dialed"...

I answered and the guy said he was calling about a computer that has microsoft office on it.  I told him that I don't know why he is calling and that I was at work and didn't want him calling back.  He then said, "aren't you listening?  Can't you speak English?  This is about a computer".  I then told him not to call me again because he was yelling at me because I didn't want to talk.  So I hung up.