calls and hangs up put on my caller reject on my phone

They call and a message plays that says: "This is an important call for" and then it just hangs up. I have called them back twice today as they call a couple times a day and never leave a message. On my first call I reached a young man who asked how I could help him. I told him that I would like to know the name of the company as they call repeatedly. He then just kept saying hello as though he couldn't hear me. I then called back and another man answered and when I asked what company I had reached he just hung up the phone. I know I don't have any business with anyone in Ontario, I'm self employed and don't believe in credit. I have no bills other than my housing and utilities which are all current... so I know I have no business with anyone other than my own bank and my customers who are all in Eastern Canada, and I'm sure would leave a message...

was on hold waiting for a representative, on the message it said the law offices of D Ambrosia, when the person came on he asked me my name which I gave. Then asked for the last 4 of my ssn. I said I don't know who you are, isnt there anything elses you can look it up by. I said I dont know if you are fraud. He then said I cant help you, and I said I can't either... I believe its a SCAM

no message or anyone on the other end.

stop calling tied of it

These retards keep pranking my phone and then hanging up before anyone speaks obviously due to a cheap dialler system. Calls at 8.30 on sunday mornings arnt too uncommon either do they have a cs number?