User blog comment:Icecream18/Is there a way to get a certain service NPC?/@comment-26408254-20160116063753/@comment-24258073-20160116064704

That's strange, since that's not normally possible. While the maid that responds to your Sim's service call on the telephone is typically decided on the spot, one thing I've noticed with newspaper and bill deliverers is that a particular household always seems to get that same NPC, unless that NPC dies, or they're made playable.