Re: If i buy EA Play and buy a key afterwards
@AMGSilent If you buy a key for a game and register it in Origin, you get to keep that game after your subscription expires. However, you might lose bonus items if you for example bought the standard version but were getting the deluxe version through EA Play.
As to whether you might make a mess... maybe? There are times when Origin blocks people from playing a game they used to have through EA Play, even though they own the game outright, because Origin is reading the EA Play version on their accounts and blocking access to it. This can often be solved by selecting Uninstall and then "revert game edition," and if not, EA customer support can sort it out. It's a bit inconvenient though.
If and when you do buy a key, please make sure to get one from a legitimate seller.
https://help.ea.com/en-us/help/faq/where-to-buy-ea-games-v2/