MrT:

I also discovered that there IS a $1 surcharge for the transaction (makes the total purchase price of an Algorithm $26 in AU) so each time I previously tried it held $1. This is supposed to 'disappear' after the purchase actually goes through.

That's odd I purchased 2 x alogorythms on the 9th Jan through iTunes (ios) and was only charged $24.99 AUD each.  Mine went through straight away?  Is that your bank charging the extra fees?  

Even if we were able to buy through Amazon with the AUS dollar going down its really only $0.99c difference.

Yeah it would be nice if we could purchase through iTunes on desktop as well but not really a big drama..