According to a recent post on the Polestar 2 forum Polestar is giving 2 years of free charging at Electrify America charge station for the owners of 2021 Polestar 2's https://www.polestar-forum.com/threads/free-electrify-america-charging.3720/
It's now official: Polestar 2 Gets 2 Years Of Free Fast Charging At Electrify America "New and existing Polestar 2 drivers will receive the free charging starting two years from vehicle handover on the nation’s largest open ultra-fast DC charging network; the program will also cover current drivers who bought the vehicle since the car’s launch. Charging benefits for 2021 and 2022 Polestar 2 owners will be accessed through Electrify America’s industry-leading mobile app, which was recently redesigned to provide electric vehicle (EV) drivers with a simple and inclusive ‘one stop’ solution for all their charging needs. Highlights include a streamlined account creation process, optimized contactless payment and the ability to locate a charger and track a charging session."