This number rang my mobile today with and automated voice telling me I had signed up to Amazon Prime last night and $79 would be deducted from my bank account and if I wanted to discuss it to press "1". I pressed 1 and was told if I wanted to cancel I had to go to a webpage to do it. I've never bought anything through Amazon, they don't have my bank details or mobile number and I hadn't signed up to anything. I got the same call from another number a few hours later.