They claimed they had a missed call from my number. My phone was beside me and I hadn't made any calls, when I said it wasn't me they started carrying on that I had called them (I was on speaker and there were 2 females on the other end of the line. When I said it couldn't have been me, they kept harassing me until I hung up on them and blocked the number.

Be careful, potential scammers or people with too much time.