Ann: Business and Funding Facility Update, page-58

mate. you really should check what you say. Firstly, Australia has the second lowest domestic interchange rates aside from France. The interchange rates right now are regulated (just google interchange and mastercard or visa). A standard no frills card is ~30bp and a super dooper platnium poist card may be 1.6%. On July 1st, the maximum Visa/Mastercard interchange fee will be 80bp with the average across australia dropping from 54bp to 50bp. AMEX dual bank issued cards are included in this cap. Amex direct issued cards are excluded. As a result, you will see further surcharging difference between AMEX and Visa/MC. The debit cards have their own interchange category. At the moment, Mastercard favours low value debit card transactions with a lower interchange, visa does not.

You assessment of Klana finding it hard to charge 3-5% but AFY not finding it hard and basing that on interchange fees is completely incorrect.