No problem Spud-bro.
Daily Quests award Platinum. I also think that Main Quest 20/20 may award it (not sure).
But yeah, Credits are the blue ones, Plat are the Yellow ones.
You can purchase Characters with Credits OR Plat. for credits I think it’s 47,500 (of the blue coins). You gain Credits (the blue coins) after each PvP game and/or by Selling gear you’ve gotten and don’t want, and by completing Main Quests AND by completing challenges.
You can look at your challenge progression and rewards for completing them by going to the command page.
Command --> Career Tab --> Challenges
There you can look at challenges which are organized by
Character, Story (which you don’t have access to), Versus, and other stuff I can’t remember.