So this has happened twice where I buy food from these dodgy kebab shops at Gold Coast (QLD) where the cashier holds the EFTPOS machine facing to themselves and wanting me pay pass my card and when I ask to see it I noticed they have put extra $7 there!
I asked what was that for? He said "oh for drink" .I pointed the menu the had $10 plus drink he is like "oh sorry" and fixed it.
Please always check the EFTPOS machine before paying whilst I was there I noticed so many people just touch their cards/phone and don't check it.
I exclusively use Apple Pay on iPhone and it immediately pops up with payment receipt so you can check it live there too.