Unsolicited call saying i had been shortlisted to top 100 to win a google home mini, said I wasn't interested anymore and I politely hang up.

I missed the call and when I called back it said the number is not in service

Scam. Could not understand the name of the company who was calling. Claim to be calling regarding an online competetion they claim i enterred, which i know that i did not. I hung up and blocked the number.

Rang and hung up after I answered.