Nostalrius Begins - Quality wow vanilla realm (1.12)

Hello! I was wondering if anyone has any experience with this. I'm moving to Sydney next month (currently live in Europe) and obviously my IP is going to change. How does that work? GM's will see my logs that my IP change and then auto ban me thinking I bought an account? Is there a way to make a topic in advance and show them my ticket to sydney etc?

Thanks!