I just got a call from this number but I didnot answer

BULGARIA

They called 3 - 4 times at 3:30 AM on a workday.  I hate losing sleep due to calls like this.  The caller was male and speaking a language that I could not identify.  I was unable to determine who it was or what the call was about.

number called on march 8, 2010 at 6.11 pm est. did not asnswer.  caller id says "ontario canada".

I got a call from this number few minutes ago,  told something about investment , some girl with bad english (like mashine or voice change software) , my is bad to, and comunication be very confused. She know everything about my company adress, etc.. ??? Find on net ..?  When I say send me email or letter she answered "..I must ask my manager" I DON'T KNOW WHO IS THAT !!!  I wont' answer again for call from that number. What ever is, not regular and legat, (my think).

Frequent call from this no.