I received a call from this telephone number, from a woman named Kelly O'Brien. She claimed that an investment company had charged $295 to my credit card to lower my interest rate.  I told her that I was not aware of this and that I would need to research it and call her back she gave me a telephone number for Hilton tax company out of Nevada. When I called the number back it says that All calls have been blocked! I believe this is a scam!