Hi guys! im sorry to bother but i need help with some things!

I know you need to be a "premium user" to trade, but i cant drop items either. Is there an Order i need to make to be able to drop items? Or just some items are dropable?

My other question is regarding teams. Our team flag has to be necessarily done with the symbol art creator from the game? or can we upload our own flag made with photoshop or paint or whatever??

Thanks a lot, and sorry for my english, but im from Chile