Frisk isn't really clear on the meaning of being under contract, but they nod at the mention of friends. You can't just leave your friends in a bad situation, not even if it means getting out yourself. They're not sure if they could get jobs for a lot of people. Mettaton likes them, so they think just one would be fine...?

They should still be nice to you, they say anyway, because that's true. What advice can they possibly give here? They don't really understand the situation. It's hard to say without seeing what these Virgo people are like.

Make friends with them.