Called and left no message.

Same thing to me. Called and left no message.

called and didn't leave a message.

this same number called me with no message. i called back the exact number and an automated response said "the number you have reached is not in service". weird. can't even find out who they are.

This caller (probably a scam to get credit card info) calls regarding Merchant Services.  I really didn't get into things with him.  I said hello and he asked for me by name.  I asked who was calling.  He starts right in with my first name, and "I am calling about..."  I said, why do you assume I am the person with my first name?  He said, well if I was home I wouldn't let anyone else answer my phone.  It amazes me the presumption that these people take.  I told him don't call me again, you are probably a scam.  He hung up!