Like many other sports franchises unlike other sports franchises, the NBA 2K series has a very active and NBA 2K22 MT involved community. This is the reason why they hold events that offer in-game rewards. Scanning the player's face is one example. Giving locker codes via social media is another.
Make a habit of checking their social media every day as well as searching online for Locker Codes. These are free VC and MyTeam benefits, some of that could require several weeks or hours of game time to gain.
MyCareer and MyTeam both MyCareer (and MyTeam) use Virtual Currency (VC), for players to raise their levels. To gain Virtual Currency (VC), players are able to Buy 2K22 MT build their own center and complete their quests.