Having a relative on cam is considered a pretty big no-no even if you don't do anything sexual with each other, so it's quite possible that they won't let you have that account back. Maybe wait a couple weeks and see if it was temporary or not. They don't always allow a model to start a new account, but if you try that, I would wait a couple months to see if they've forgotten. If you need to cam for bill money, it's worth looking into Chaturbate or Streammate to cam for now, until you find out when/if they'll let you back on. And I highly recommend not camming with your sister again, as most sites are going to view that as incest and not approve of it. If she wants to cam, she can do so on her own, separate account, but it's probably too risky to try camming with her again.