what is wrong with Nicetalk

so I've been using Nicetalk for some time now and the hours are a little horrible. I don't understand how people manage to rack up to 40 hours or up to 102$ on Nicetalk.

I tried it for the first time two days ago and I just got calls from people saying hi and then telling me I'm pretty and then hanging up. They're like a bunch of kids and I don't know how to really make this application fruitful. Send help.