So some sellers are changing some format of listings. And I dont know how, is this against TOS of gameflip? If not, how can I do it?
They’re probably using the API to create custom item names. It should be fine as long as the title/description accurately describes the item.
Brightcore Ore already exists in the items database, so you don’t need to make it as a bundle, unless you’re selling Brightcore Ore and something else in the same listing?
If there is a Fortnite item missing when you try to search the sellable items list, please mention it.