Pinned straw:
I think they're deeply hobbled by the proposed debit card surcharge changes.
SmartCharge, for those that are not aware, is Smartpay's "zero cost" terminal solution. Merchants get a free terminal including receipt refills, support and repairs/replacements provided they charge the end customer a card surcharge which SMP keeps 100% of.
This product was introduced in Australia during the FY21 financial year. In the space of 3.5 years, grew to become 85-90% of SMP's Australian revenue - this was disclosed in the 1H FY24 conference call and the latest data point I have. Australia is also 75-80% of the group's revenues currently.
My personal view is SmartCharge is Smartpay's sun, moon and stars. It is the one quirk, where the incumbents dismissed outright or were extremely slow to copy, that got them to where they are today. I just can't see how they can be competitive without it.