How do NFA keys work, and what if a key does not work?

An NFA purchase gives you an AimJunkies key, shown on your order page. Open it in the AimJunkies Launcher on Windows: the launcher shows the seller’s key, starts the seller’s loader (reviewed by our staff and checked by its fingerprint before it runs) and records whether Steam signed in. That recorded login settles every claim. If the launcher recorded no login, press “Key doesn’t work”: you get the next key from the same tier once, or a full refund if the seller cannot restock within 12 hours. Once a login is recorded the key worked, and an offer with no warranty is final. Each key works for 7 days; press “Done with this account” to close it sooner.