As per Steam's refund policy, you can request a refund for any purchase on Steam for any reason, including an EA Play subscription.

Source: https://www.devicemag.com/how-to-get-refund-on-steam-for-battlefield-2042/

EA Play and Xbox Game Pass Ultimate members get access three days early as part of a trial.

Source: https://www.forbes.com/sites/krisholt/2023/08/14/this-weeks-new-games-game-pass-and-ps-plus-additions-and-free-games-on-prime-gaming-and-epic-games-store/