Credit Card Chips

So I went to the commonwealth bank 2 weeks ago and they said that my old credit card without a chip would be ok to use, and now I ring them to inform them of my trip so they dont cancel my card on me, and they say I need a new card with a chip and that I will have to pay $20 to get it express posted coz I leave next week.

are they trying to con me into paying an extra $20 that I dont need to pay? I have heard that the wizard card (no chip) works fine everywhere, so why would that card work and not a commonwealth card without a chip? And why would the branch tell me something different to the call centre?

I really hate the Commonwealth Bank right now!

I have a Wizard card anyway which will be my main use, but I wanted my commonwealth as a back up, but not for an extra $20.

Any feedback/suggestions are muchly appreciated. :-)