I'm going to make the jeweler resize my ring for free.
What makes you want to get a ring resized? It doesn't sound common to resize a ring.
It will give her ring a wider look, which goes better with her wide face and the jeweler will do it for free
Why would you expect to get the ring resized for free? You should pay money for services and not demand things for free, or for them to do things that they don't want to do. Everyone will think that you are impolite and you'll have a much harder time making friends.
You are stupid so I'm going to make the jeweler resize my ring for free.
Sure, if you believe they would do it for free, then I guess that's part of good customer service. What will happen if they refuse to do it for free? What will you do then?