Same here.
That said, two years ago, I got a call from someone on behalf of Pay Pal, telling me I'd won a draw from a recent competition survey, and £1,000 would be deposited into my account within four or five days. Didn't ask for any of my details, but I didn't believe it.
Checked with PP, and they were unaware of any survey with a possible prize, but had received a couple of calls about the same thing.
Low and behold, a few days later, £1,000 was in my PP account, quickly transferred to my Bank account !