Stamp Duty Question

Hi all, I'm a newbie to this forum and to investing. Purchased my first IP a month ago and received the loan contract today.

We're borrowing $310k for a property we purchased for $280k and we're using our main residence as security so at this stage I'm a small time player. My question is this, when I opened my loan contract, I noticed the bank's lawyers have estimated stamp duty and government charges at some $22k on land valued at $450k. In other words, they've combined the 2 properties to calculated stamp duty.

Please someone tell me that this is a mistake. :confused:
Yep, it's a mistake. Best to ring the revenue office in your state and verify though. Can't imagine it could be correct or we'd all be broke!