Just had a call from 02070597699. Very bad background noise, caller sounded like she had a Phillipino or similar accent. Asked if I'd enterted an online competition recently for an iPhone, I've entered a few so said yes. She said that this was just a courtesy call to tell me that the competition had now closed and I'd be getting an email soon telling me what I'd won. She then went on to say that everyone who entered the contest was getting some free lottery tickets and how lucky I was. I hung up.
The phone they called me on is a mobile on Three and the only people who have that number besides myself and Three are my sister and the Telephone Preference Service. I only have the phone because my sister has a three phone and it's cheaper for me to have another phone on Three than to call her on my main phone which is on Orange.
I called the number back and asked the person who answered the name of the company, she said it is BTD European Services. I confirmed the company name and hung up.
I Googled the number and found a number of forums where people reported that this is a scam. Apparently later in the call they ask for personal details to prove ID and for bank account and sort code details.