N1 Coins, discount coupons, or a free coaching/boost service, depending on the box.
Every reward's exact win chance is shown on the box page, from Common (most likely) to Epic (rarest). The odds are fixed and visible before you open a box - nothing is hidden.
You earn 100 N1 Coins for every $1 you spend on a boosting, coaching, or account order. Coins can't be bought directly - they're a reward for using N1Boost.
Open "My Rewards" from your profile menu - it lists every reward you've won, its status, and how to use it.
Open "My Rewards", find the service reward, and redeem it - a real order is created at no cost and a booster is assigned right away.
Some do. Check the expiry date shown on the reward in "My Rewards".
No - at checkout you can use either a coupon code or a Lootbox discount reward, not both at the same time.
It's a free reward VIP members get every month, not bought with N1 Coins. Every other box is purchased with Coins and open to all players.
No. Every reward is tied to your account and can only be used by you - it can't be sold, traded, or transferred to anyone else.