Charging more than you say is not a 'hidden fee' it is fraud. Hiding the fee in the total price is exactly a 'hidden fee'.
To this point, look at @exogen's extremely helpful demo of the service he posted. Can you tell how much the fee was? I was curious, so I actually went to Octo Sushi's site and tried to mock up a fake similar order, and I couldn't figure out if there even was a fee added on top of Octo's price or not.
The minimum order is 25$, not including tax, and I don't know if that includes the delivery charge. So the final Octo Sushi price has a minimum of around $27.50-30.00.
To this point, look at @exogen's extremely helpful demo of the service he posted. Can you tell how much the fee was? I was curious, so I actually went to Octo Sushi's site and tried to mock up a fake similar order, and I couldn't figure out if there even was a fee added on top of Octo's price or not.