OKEx created a new feature on their referral system that seems to be really unknown. If you check online you almost exclusively see the $10 referral bonus or perhaps some have a $30 or $50 depending on the campaign. A really new addition to the referral program is the one where you are allowed to select your own referral kickback in the same style as Binance offers:
This is really interesting, because it gives a clear advantage to the user who is using the referral ID and also allows you as a person who wants to refer someone stand out amongst the crowd.
If you are looking for such a OKEx Referral ID for 20% discount you can use: https://www.okex.com/join/3/2173695652