Hide default AUD currency and force EUR currency

Hi,

I have a webstore that needs to have AUD as the default currency (due to our costs being in AUD), but only display EUR when google merchant does a page crawl.

When AUD is set as Default and Hidden it still shows and causes errors when Google Merchant does a page crawl due to a miss-match of feed currency and webstore currency (Google Merchant feed is in EUR).

Is there any way I can force EUR currency when using AUD as the default currency?

Kind regards,

Owen