Beijing and Shanghai have given no indication of whether the bans will be lifted.
Other bike-rental companies are considering raising prices, as warmer weather brings a likely rebound in trip numbers.
Foshan will require Mobike, ofo, and other bike rental companies to hand over users blacklisted for bad parking.
Didi’s struggles in the bike-rental market led to a launch of its own brand, Qingju.
The rules went into effect on Wednesday on Didi’s bike-rental platforms Qingju and Bluegogo.
Cash-strapped Ofo could try wheeling its business down another path.