I get calls from this number every single day, sometimes multiple times a day.  I answer but nothing.  I have called the number back and I just get answering machine that is full and eventually it hangs up on me.  Driving me crazy!  What can I do?!

Here's what you do. If you have verizon. You can call verizon and have thm block 5 numbers for 90 days for free. Or, naturally verizon will charge you 4.99 a month for 20 blocked numbers for the life of your contract, or until they screw you out of every dime they can get their hands on. Eitherway, you can block the number. Good luck.