Spoke to someone advising they were from Amazon, and they wanted to inform me that someone had tried to purchase an iPhone with my account but the transaction had failed. Told them I'd check my online history for myself, thanked them for their time, and hung up. They addressed me by my real first name. No suspicious activity found on any of my online accounts. Suspected scam

This number called but didn't leave a message . When l rang back it's not listed

seems like a scam caller doing the rounds, just left a message saying "hello.....hello" to what was clearly an answer machine and not someone picking up the phone