A word of warning to Paypal users. I had an email apparently from Paypal yesterday morning advising me that a request for payment had been received from some Italian sounding bloke for £699.79, and on checking my Paypal account the request was there awaiting approval. The Paypal fraud line number in the email turned out to be the fraud itself! After a long and increasing fraught conversation with some strongly accented woman I decided that this probably wasn't Paypal's number despite the payment request appearing in my Paypal account. Eventually I cancelled the invoice request via my Paypal account, cancelled my credit card pinned to my PP account, and changed my PP password.
The lesson is do not call the fraud line given in the apparent Paypal email if you get one. It's a clever scam and I nearly fell for it. The origin of the email was definitely Paypal and the links contained in it were to Paypal, not some gibberish address as is usually the case when you hover over them. It was the message from the invoice source that contained the spoof phone number, but because it appeared in a genuine Paypal email and the invoice proved to actually exist, that went unnoticed, as did the glaringly obvious typo in the vendor's message.
A bit of research suggests this is new and the real fraud is the fraud line number which puts you through to what you assume is the Paypal security centre.