Unfortunately with Asos updating their website, they have forced customers to use their countries currency only and no way to go back to the old format of their website. Looks like we will no longer save 10-12% with the currency converter. This is a sad day for oz bargainers who buy from ASOS:( if anyone finds a way around this please let me me or the ozbargain community know, thanks!
Update: I have found a way to get pounds to work in the Australia store, just head to the uk site find the product your looking for, change the store back to Australia and the price should be in pounds- hopefully other people can benefit from this too
you can still choose to pay with whatever currency you want.
just change it to the country of the currency. Fill the cart. On the payment page, fill your shipping details to an Australian address.