Called. Didn't leave a message

Called cell phone but when answered no one spoke, no message, perhaps a wrong  #????

The customer service representative is completely dishonorable, she didn't provide me information when I ask for the company and her contact information as I mentioned my mobile number is registered with "Do Not Call List" and please remove my number for any future calls.

got a call form this number at my work phone, when to my voice mail but it is a complety silence. weird!

Called but left no message.  Added to my blocked caller list.