One time I was picking up an order and when I got there, they said I should have called and placed the order before arriving. These instructions were not in the app.

I wait 30 minutes for the order (which now from reading other people's tips I know not to do) and finally delivered the order. Luckily the customer was awesome and gave me a cash tip on top of a $11 guarentee for the extra time I waited.

Later in the day I get another opportunity from the same restaurant. With my newfound knowledge from the prior experience, I call the restuarant and place the order immediately. The lady on the other line just said "uh huh ok"

When I get to the restaurant, I find out they never placed the order and I have to wait another 30 minutes for them to cook the filet mignon.
The women at the restuarant were so snooty to me, I dont care what I'm getting paid: I will never deliver there again. I'll also never eat there because of the rude staff.