a woman wanted to discuss "a personal business matter" with my wife. Would not answer any of my questions.

A woman named Kelly called my home wanting to discuss a personal business with my wife.  She refused to identify the company she was representing.  She became very abusive and starting yelling.  I believe it is a requirement for individuals to completely identify themselves and Kelly simply refused to do that.

someone called my cell phone from the phone # 770-302-0080 to discuss a personal business matter. she said her name was Tina Grant. when I asked her what the call was regarding (before telling her who I was), she would not tell me. I told her I was not sure if she had the right #. she hung up.

I received (3)calls from this number in the last (2) months they would not leave a message or when I did answer I could not get a name from the individual. No caller ID, only the number, I did a call back but you never get and introduction of the company just a voice message that your call will be answered by the next available agent. When the agent answered I asked for the name of the company but received only a dial tone.

I have been receiving calls from this same number! Who is this company/person?