Who called from 2108810568

Annoyed by this apparent normal call, just silence ,
Dead beats on the line, hang ,or don't answer it , delete , Spam
fishing for people to answer the calls ....
bunch of mental cases

Said hello and then they hung up

Called my cell today as well (8/15/16).  Didn't answer and no voice mail left.  Called back and "the survey has ended" message.

They keep callibg 8/15/16. No message left. I will block #.