I looked it up in the sims wiki and it said that they’re prank calls that were supposed to make the players scared or worried that something bad is going to happen. They creeped me out too, there would be this one saying “you have been chosen, they will come soon” and I would make my sims never answer the doorbell for that day haha. Nothing really happens, but it’s still pretty creepy!
I did that too!! I needed like a whole plan of action just to not have my baby taken away as soon as it was born