Amazon Flex does this as well. I signed up to do deliveries last year to see how it worked, and on a couple occasions gamed it such that I was able to deliver

Amazon Flex does this as well. I signed up to do deliveries last year to see how it worked, and on a couple occasions gamed it such that I was able to deliver an order I placed to myself (which is really just ordering from a nearby restaurant and hoping you get the offer). The advertised pay I would get for the delivery before accepting it was $7-12 (the range is supposed to account for tips, and across all deliveries, when everything settled it was almost always the low end of that range). With Amazon Restaurants, you had to tip when you ordered, and couldn't change afterwards, and my tip was $3. When everything cleared, I got $7, and I knew $3 of that was my own tip to myself. Had I tipped $0, I would still have gotten $7. I always felt it was a crummy thing to do to people -- your tip was just making Amazon give the driver less money. Not being able to change the tip also sucked, as I don't like tipping when I haven't received anything yet. That's more of a "name your price" service fee. Amazon has dropped out of the restaurant game, but they still probably do this for Prime Now and Whole Foods (package deliveries aren't eligible for tips). The funny thing with restaurants was during peak times, when they didn't have enough drivers, they'd send out guaranteed $22 offers to delivery maybe $20 worth of food, which I always pounced on as it was incredibly easy money. It's no wonder they couldn't keep that business going. Tips sometimes worked out well, though -- on some Prime Now routes where it was maybe $20-30 guaranteed, I'd get over $60 after tips. So they weren't always keeping everything to themselves. I could never figure out the rhyme or reason behind any of it.