Earlier quoted context omitted.
I feel really bad for small restaurant owners. These large delivery companies totally take over their internet marketing too, registering a domain like ' - .com' and when you go to that website, you really have to pay attention to see that this is not the 'official' restaurant website and if you order through there, it's costing the restaurant a lot of money that they wouldn't miss out on if you'd order through their…
This should be straight up illegal and the companies sued to hell for. If I opened a site claiming to be a bank and accepting money on behalf of that bank, and keeping 20% I'd be behind bars for fraud in no time.
They advertise that you'll get food from Restaurant X and that's indeed what you get. It's not fraud to resell product, you don't need permission from the original seller to do it (in fact I think that's a specifically protected right), and it's not fraud or any kind of trademark violation to describe a product as being from Restaurant X if that is a fact.