Had the same thing. Going on about a shopping voucher competition that I’d entered (which I don’t remember doing) and continued on about my entitlement to a month’s free euro millions lotto and normal lotto draw. I eventually put the phone down once I’d googled the number but didn’t get to the point where any details were asked about me other than how many lines I usually put on the lottery and what my biggest win has been
Have had several missed calls. Answered whilst at work and the man I had entered a MAC competition and won rows of lines to play the lottery the following day. But I never entered such competition, Said I’m not interested & put the phone down