They are calling repeatedly.  I pick up.  They hang up.  Maddening!  I called the number back and the automatic operator said that the number was not in service!

ADVISED THEY WERE'NT AN UNSOLICITED CALL AS THEY WERE CALLING ABOUT THE RATE INCREASE.  HUNG UP.

THEY KEEP CALLING AND NO ONE IS ON PHONE WHEN I ANSWER.  CAN'T CALL BACK.  

This is a credit card processing company that you cannot call back.  It says that the number is no longer in service.  They are very rude on the phone when you ask them to stop calling you.  They have called our place of business at least a few times and keep calling regardless of whether we are on the do not call list or not.