Calls but no voicemail, suspicious.

Repeatedly calls...no voicemails

they called and actually used my full name which I did not give on an internet site I was looking at.very strange. I told them to take me off their calling list. I guess wait and see if they call back.

That number belongs to CLUBPBX INC #3~ as of Nove 16 2015. Called and used my first name.  I said I am not buying anything,,no surverys... and dont sell me any product.  I could not understand the caller at all...what else is new?  I hung up as they kept on talking..

Calls all day long, they don't live any voicemail . How do I block this number?