I told them wrong number, and they keep asking my name. I sure won't give them a chance to clod calling me again ever

I had the same. No idea what its about (other than a potential scam).

returned call - number now out of service

Caller: Unknown

Called asking for a person who doesn't exist, which scammers have on the list as owning my number.
I swore at the guy, he swore back and promised to call me 10000 times today.
I only got the 3 additional calls, so I feel a bit ripped off that he didn't waste more time on me.