The core global offer is a new-user task program for people who register through a referral, affiliate or other designated link. OKX's own terms say the tasks and reward amounts vary by sign-up country and are shown only in the app. One third-party review lists a ladder of six milestones, starting at about $5 in BTC for a first deposit and rising in small steps to a $400 total that needs $80,000 deposited and $500,000 traded; OKX does not publish that ladder. Referral marketing still quotes figures up to $10,000, but those combine fee rebate cards and mystery boxes rather than cash you receive. Treat $400 as a ceiling few users reach; the realistic value of the offer is a few dollars to the tens of dollars.
Timing rules are strict. You must log in to the app within 30 days of registration, each reward must be opened within 30 days of receipt or it expires, and after 180 days you can no longer see your task progress at all; in the EEA the trading tasks must be finished within 14 calendar days of registration. Crypto rewards arrive locked. Under the EEA terms the lock lasts up to 45 days, during which the reward can be used for trading but not withdrawn, and you must keep a balance at least equal to its USD value; the global terms do not state the lock length. Rebate cards offset trading fees rather than paying out cash. Sub-accounts are excluded, and OKX claws back rewards for multi-accounting, fake KYC or wash trading.