Are the payments made online, for my Express Airport Transfer secure?

If you  submit payment online, we  use a third-party payment gateway called Eway. It is a well regarded, secure facility that is used by companies like OPTUS and QANTAS (http://www.eway.com.au/about-eway-payment-service-provider/success-stories/satisfied-eway-customers.aspx), they connect our website with our bank  –  The Commonwealth Bank of Australia.  The process is safe using SSL technology.