Caller pretending to be from PayPal, knew my name and mobile number and had sent me a "one time code" which they wanted me to repeat back to them. I declined, as I know Paypal only emails you about your account and in the odd chance they call, it's always from a Nebraskan number not local (Australian) and is in response to a message you leave requesting a callback. Have blocked number & reported it to the real PayPal.