Please be as specific as possible when letting us know what is missing or incorrect. For example, say "this game's trophy difficulty should be 8/10", with a link to a website corroborating this difficulty estimate (if possible), not "this game's trophy difficulty is wrong".
Purchase 370 Platinum, an in-game currency you can spend on Warframes, weapons, consumables, sentinels, Mod bundles, and a variety of other items from the in-game Market. It can also be used to instantly finish crafting wanted items in the Foundry.