在澳大利亚自驾收费路段收到罚单了，怎么办啊

今年春节一家三口去澳大利亚，租车自驾，从布里斯班到阳光海岸，再到黄金海岸，结果回来一个月收到两个扣款通知，今天才知道，是路过了收费路段，，以下是租车公司给的回复，，有哪位帮忙给支个招，，看我该怎么办？
The customer incurred tolls on the AirportlinkM7 tunnel and the Clem7 tunnel. As these were in the name of EZY Car Hire, the customer has been nominated as the driver of the vehicle and a letter and a ‘copy only’ of the unpaid toll notice sent to the address provided on the rental agreement explaining what has happened. The tolling companies will re-issue the unpaid toll notices in the customer’s name for them to pay.
当时还以为避过了收费路段呢，我的导航仪也没有提示啊，而且现在估计还要面临逾期罚款的问题，现在信用卡已经扣了我100澳元了，这还不是罚款，谁知道罚款得多少啊。。。哪位大侠给支个招，，这不会是骗子吧？