This is not true exactly. I tried to get a pay bump as you put it just a couple days ago. Customer support said it was against policy. My option was to not do the order, even though I had the food, or take it of my own free will with no extra pay. Lucky for me I didn't mind because it was like a mile or a little more and I drive a Prius plus it wasn't exactly the customers fault entirely. It allowed him to put in the address with no directional. It took me to the north address and he was at the south. The north address didn't even actually exist because the houses all faced the side streets once it got close. Anyways guy gave me an extra $10 tip in cash. My main worry was getting into trouble for going to the wrong place and customer service would have to complete the order for me since I was far away. It wasn't a problem though since I called into support.