Expect that you probably will unless you always use cash even if only when out and about in other areas than your regular locality.
Surcharges are the norm up Eltham way, including some businesses that add a fixed cost regardless of what plastic one uses, credit and EFTPOS alike. It has become a rare business here that doesn’t.
Some related topics include
and others.
I also see fewer and fewer businesses posting their surcharges as they are legally obliged to do. It often is only on the terminal that posts ‘there may be a surcharge, OK’.
It would seem the fairest thing would be for government to mandate businesses post all inclusive costs of every product and service as is required with GST, accepting there are other complexities of inconsistent costs for the merchant, all solvable. In the US many business post cash and credit prices, especially at servos.
Also note, those pesky fees are tax deductible to the business in most cases! Few businesses mention that when one complains about their surcharge.