On January 24 2018, Foodora and Deliveroo riders in Berlin have protested against their precarious working conditions. They have to pay for most of the bike repair costs themselves. This leads to many having to ride with bicycles that are not safe, because they can not afford the repair costs.
Video, 8 mins, 2018 engl./german with engl. subs.
And here is a little more
And here is a little more background on the riders union #FAU and about its #deliverunion organizing drive at Berlin and a couple of other cities.