The additional $50 in BTC is a special "crypto gift" to celebrate the race weekend in Las Vegas that you must claim on the Campaign rewards page. The $50 crypto gifts are offered on a first-come, first-served basis. It is given to the first 2,000 new users that are fully verified and onboard with the referral code. Tier 1 rewards have no AUM requirement and rewards may be withdrawn after a 30-day lock-up period.