On a more general level this kind of predatory behavior seems to the natural progression for internet conglomerates who specialize in connecting aggregate eyeballs / wallets to distributed vendors. It's not just delivery either, eBay, Amazon, AirBnb etc, they all absolutely squeeze vendors and there is no appeal process whatsoever if anything goes wrong with your account.
I wish there was a better way. It's quite sad to see how the internet has these seemingly intrinsic highways to organizational psychopathy built into it.